Investing in a time of negative real yields: when 're-risking' can be 'de-risking'

 
CONTINUE READING
Investing in a time of negative real yields: when 're-risking' can be 'de-risking'
Investing in a time of negative real yields:
when ‘re-risking’ can be ‘de-risking’
Investing in a time of negative real yields: when 're-risking' can be 'de-risking'
About Fathom Consulting
                                      We are an independent, London-based consultancy providing bespoke
                                                                                                                       Investing in a time of negative real
                                      project work, as well as economic analysis and forecasts for the
                                      global economy and key asset prices. Our Global Economic Strategic               yields: when ‘re-risking’ can be
                                      Allocation Model (GESAM) places the interaction between the real
                                      economy and financial markets at its core. Key international linkages
                                      include capital flows across countries, which are intermediated by the
                                                                                                                       ‘de-risking’
                                      banking sector. It covers more than 170 countries – accounting for
                                      more than 98% of global GDP.
                                                                                                                       “The UK defined-benefit pension industry’s long-standing love affair with
                                      We specialise in pensions. Working with individual pension funds,                index-linked government securities, or gilts, is well documented. At a little under
                                      and with industry bodies, we use our proprietary model of a defined-
                                                                                                                       20%, their share in the typical scheme portfolio has almost doubled during the past
                                      benefit scheme to consider the outlook for scheme funding under a
                                      variety of macro-economic scenarios. Our model is stochastic, and
                                                                                                                       six years, even as the return on those assets has fallen to such an extent that anyone
                                      provides information on the range of possible outcomes, rather than              holding them to maturity is guaranteed to suffer a real terms loss. Traditionally,
                                      simple point estimates.                                                          these investments have been seen as safe-havens. But in an environment of
                                                                                                                       negative yields and record deficits they are anything but. In this paper, we call for a
                                      Further information and contact details:
                                                                                                                       radical rethink. Whether index-linked yields return to normal, or whether they stay
                                      Web: www.fathom-consulting.com/services/expertise/pensions
                                                                                                                       low, we find that a reallocation out of fixed income and into equities would increase
                                      E-mail: enquiries@fathom-consulting.com
                                      Telephone: +44(0)20 7796 9561
                                                                                                                       the likelihood that any given scheme was able to reach a position of full funding.
                                                                                                                       Moreover, this return-seeking approach would see fewer schemes transfer to the
                                                                                                                       Pension Protection Fund, which means that fewer members would suffer a cut in
                                      About Pension Insurance Corporation plc                                          their benefits. Re-risking really can be de-risking.”
                                      Pension Insurance Corporation (“PIC”) provides tailored pension
                                      insurance buyouts and buy-ins to the trustees and sponsors of UK
                                      defined benefit pension funds. PIC brings safety and security to
                                      scheme members’ benefits through innovative, bespoke insurance
                                      solutions, which include deferred premiums and the use of company
                                      assets as part payment.

                                      PIC has more than £16bn in assets and has insured almost 130,000
                                      pension fund members. Clients include FTSE 100 companies,
                                      multinationals and the public sector.

                                      PIC is authorised by the Prudential Regulation Authority and regulated
                                      by the Financial Conduct Authority and Prudential Regulation
                                      Authority (FRN 454345).

                                      For further information please visit www.pensioncorporation.com

This paper was funded by Pension Insurance Corporation as part of the company’s ongoing Thought Leadership programme
Investing in a time of negative real yields: when 're-risking' can be 'de-risking'
Executive Summary                                                                                               Table of Contents

 •• Today’s environment of negative yields on index-linked gilts is doubly harmful to the funding                Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
    position of defined-benefit pension schemes. Not only is the real value of scheme assets eroded,
    but accounting rules mean that scheme liabilities are higher than they would be in a more normal
    yield environment.
                                                                                                                1.             A global phenomenon, affecting some countries more than others . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
 •• It is perhaps no surprise, therefore, that despite substantial injections of additional cash from
    scheme sponsors, in the form of deficit reduction contributions, scheme deficits are close to a             2.             Why are UK index-linked yields negative? And when might they go up again?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
    record high.
                                                                                                                               Measuring inflation risk. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
 •• Declining real yields on sovereign debt are neither a recent phenomenon, nor one that is confined
    to the UK. The trend is common to most major economies, where it has been in place for the best             3. 	Alternative investment strategies for UK DB schemes                                                                                                                                                 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   22
    part of 20 years.
                                                                                                                4.             Conclusions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
 •• After examining the causes of the decline, we find that the barriers to a full normalisation of UK
    index-linked yields are substantial. It would require that policy makers in a number of countries,
    including China, take appropriate action. And that is not going to happen overnight. Indeed,
    we see a sizeable risk that it does not happen at all within a timeframe that is relevant to the
    maturing UK defined-benefit sector.                                                                         Appendix 1: Fathom’s DB pension model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
 •• Scheme trustees have responded to the decline in index-linked yields by almost doubling the                 Appendix 2: Understanding the ‘normalisation’ and ‘yields stay low’ scenarios. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
    share of index-linked gilts in their portfolio. At first glance, this is a curious response, and one that
    merits further investigation.

 •• In this paper, we use our defined-benefit pension scheme model to consider the merits of an                 Authors: Andrew Brigden and Danny Gabay
    alternative, return-seeking strategy under two different macro-economic and financial market
    scenarios.

 •• We find that, whether index-linked gilt yields return to their long-run average of around
    2.0%, or whether they stay low, a reallocation out of fixed income into equities would confer a
    number of benefits. Understandably, the probability that any given scheme became fully funded
    would increase, but surprisingly, funding uncertainty would reduce beyond the very near term.
    Consequently, fewer schemes would transfer to the PPF, which means that fewer members would
    see their benefits reduced.

 •• Increasing the share of risk-seeking assets in the portfolio is particularly advantageous both to
    poorly funded schemes, and to those that have a weak corporate sponsor.

 •• Intuitively, when the trustees of an underfunded scheme increase their allocation to index-
    linked gilts, they are merely swapping one form of risk for another. They are protecting members’
    interests from unexpected movements in inflation. But they are simultaneously prolonging the
    time it takes to return to a fully-funded position, raising the prospect that the scheme sponsor
    fails before they are able to do so.

 •• We find that the asset allocation of UK DB schemes has become too defensive. Schemes appear
    to be positioned either for further declines in index-linked gilt yields, or for a sizeable increase in
    inflation uncertainty. While we would not rule out either of these entirely, we regard them as low
    probability events.
Investing in a time of negative real yields: when 're-risking' can be 'de-risking'
Introduction

    The global economic and financial market landscape remains exceptionally challenging for the UK             In our earlier work, scheme trustees were largely passive takers of whatever the global economy and
    defined-benefit (DB) pensions industry. It is now more than four years since the yield on a basket of       its financial markets threw at them. Although we developed simple asset allocation rules, which saw
    index-linked gilts turned negative for the first time. Index-linked gilt yields have remained negative      investment in fixed income assets rise with scheme funding, and with scheme maturity, these rules
    and, by October 2015, were close to historic lows. Accounting regulations mean that low, and indeed         were data-determined. They were calibrated using actual patterns of investment reported in the Pension
    negative real rates of return on government debt are doubly harmful to scheme funding. In the present       Protection Fund’s Purple Book. Here we take a different tack. We take a step back and ask instead
    environment, any organisation holding index-linked gilts to maturity is guaranteed to lose money on         whether the observed approach of asset allocators is a sensible one.
    that investment, after adjusting for inflation. Moreover, with actuaries required to discount expected
                                                                                                                The remainder of this report comes in four sections. In the first section, we briefly review the
    future cash payments at a rate closely tied to the yield on government debt, scheme liabilities will
                                                                                                                behaviour of index-linked yields around the world. We find that, although these have fallen globally,
    increase in proportion to the decline in index-linked yields. Using data from the Pension Protection Fund
                                                                                                                the reductions in some countries have been more marked than elsewhere. In the second section we
    we estimate that, by October 2015, the aggregate funding ratio across all DB schemes was close to an
                                                                                                                consider what light, if any, economic theory is able to shed on this phenomenon. If we are able to
    all-time low – see Figure 1. With record levels of deficit reduction contributions made in recent years,
                                                                                                                understand the causes of the steady decline in index-linked yields, then we will be better placed to
    underfunded schemes have been running hard, and yet they have been unable even to keep still.
                                                                                                                make judgments about the set of circumstances that might cause them to normalise, or indeed to stay
                                                                                                                where they are. It is striking that, as yields have fallen, the share of UK DB scheme portfolios allocated
    Figure 1: Aggregate funding ratio of UK DB schemes, s179 basis
                                                                                                                to fixed income assets has tended to rise. In the third section, we use Fathom’s DB pension scheme
    Per cent                                                                                                    model to consider under what circumstance this might be the best strategy. We address the issue first
    180                                                                                                         in a world where yields normalise, and second in a world where they do not. A final section concludes.

    160

    140

    120

    100

      80

      60
       2003 2004 2005 2005 2006 2007 2008 2009 2010     2011   2012 2013 2014 2015 2016

           Source: Pension Protection Fund / Fathom

    In our previous report with Pension Insurance Corporation, “Who carries the risk? Asset-allocation
    challenges for defined-benefit pension schemes and their corporate sponsors on the road to buyout”,
    published in December 2014, we considered the consequences for the industry of the Office for Budget
    Responsibility’s latest set of long-term forecasts for the UK economy. As we noted at the time, those
    forecasts were music to the ears of trustees battling large scheme deficits. Growth was expected
    to average 2¼% while inflation remained close to target. Against this backdrop, there was a steady
    normalisation of both index-linked and conventional yields. But we also considered a darker alternative,
    where yields stayed low.

6                                                                                                                                                                                                                            7
Investing in a time of negative real yields: when 're-risking' can be 'de-risking'
1. A global phenomenon, affecting some
    countries more than others

    This section examines the evolution of index-linked gilt yields over the past 30 years or so. Comparisons are    Today, the largest index-linked sovereign bond markets are found in the US, the UK and France. In Figure
    drawn with the experience of other sovereigns that also issue debt, the repayment of which is tied to an index   3 we show how, in each of those three countries, the weighted average yield on the entire outstanding
    of consumer prices.                                                                                              stock of index-linked government debt has fallen dramatically, and at a fairly steady pace, since the
                                                                                                                     late 1990s. That suggests there is a global aspect to the decline in index-linked yields. And whatever
    The UK was one of the first major economies to issue index-linked government debt, which it did for
                                                                                                                     explanation we put forward for the behaviour of the UK gilt market, it must take this into account.
    the first time back in 1981. The market remained small until the mid-1980s, and it is from this point
    that the Bank of England makes available estimates of the yield on synthetic, zero-coupon, index-
                                                                                                                     Figure 3: Index-linked sovereign yields
    linked gilts. According to these data, ten-year index-linked yields were remarkably stable for a period
    of some 15 years, generally trading in a range between 3% and 4% (see Figure 2). But from the late               Weighted average, per cent
    1990s, ten-year index-linked yields began to fall. They passed through 2% before the end of the                     5                                                                                     UK
    decade, through 1% in the late 2000s, before finally dropping below zero in the early 2010s. What of                                                                                                      US
                                                                                                                        4
    other countries?                                                                                                                                                                                          FR

                                                                                                                        3

    Figure 2: Ten-year index-linked gilt yields
                                                                                                                        2

    Per cent                                                                                                            1
       6
                                                                                                                        0
       5
                                                                                                                       -1
       4
                                                                                                                       -2
       3
                                                                                                                         1998        2000         2002   2004       2006   2008   2010   2012   2014   2016
       2
                                                                                                                            Source: Thomson Reuters Datastream / Fathom
       1

       0

      -1

      -2
        1985           1990           1995           2000   2005       2010         2015

           Source: Thomson Reuters Datastream / Fathom

8                                                                                                                                                                                                                               9
Investing in a time of negative real yields: when 're-risking' can be 'de-risking'
1. A global phenomenon, affecting some countries more than others                                                                                                                     1. A global phenomenon, affecting some countries more than others

             While index-linked yields have fallen in many developed economies, UK index-linked yields are                By comparing forward interest rate curves, rather than weighted-average yields, we can side step the
             particularly low. By the end of October 2015, the yield across the entire outstanding stock of index-        difficulties posed by marked differences in weighted-average duration across countries. In a speech given
             linked gilts was around -0.8%. The equivalent figure for US Treasury Inflation-Protected Securities (TIPS)   in 2014, Bank of England Chief Economist Andrew Haldane described a forward real interest rate curve
             was +0.5%. It is likely that differences in the measurement of inflation in each country will account        for the UK economy based on a comparison between conventional gilt yields and inflation swaps of
             for some of this spread, but not all of it. The performance of UK index-linked yields is all the more        varying maturities1. He drew attention to the fact that, at the time, investors were pricing in a negative
             remarkable when you consider their duration. Figure 4 shows that the average duration of index-linked        real rate of interest in the UK for the next 50 years. As we show in Figure 5, more than one year later,
             government bonds in the UK is now in excess of 20 years, while in the US and France it is less than 10       UK real forward rates of interest are still negative at every horizon. Here, the contrast with the US is
             years. On a duration-adjusted basis, it is likely that the contrast between UK index-linked yields, and      more evident. As of October 2015, US real forward rates of interest turned positive within a couple of
             those in other advanced economies, is greater still.                                                         years, from which point they continued to rise, peaking close to 2% in just over twenty years or so.

             Figure 4: Duration of index-linked market                                                                    Figure 5: Real forward rates in October 2015

             Weighted average, years                                                                                      Per cent

               25                                                                                     UK                       3                                                                                                          UK
                                                                                                      US                                                                                                                                  US
                                                                                                      FR                       2
               20

                                                                                                                               1
               15
                                                                                                                               0

               10
                                                                                                                              -1

                5
                                                                                                                              -2

                0                                                                                                             -3
                 1998        2000       2002     2004       2006   2008   2010   2012   2014   2016                                0        5        10         15        20        25            30     35        40        45      50
                                                                                                                                                                                Maturity, years
                    Source: Thomson Reuters Datastream / Fathom
                                                                                                                                   Source: Thomson Reuters Datastream / Fathom

                                                                                                                          1
                                                                                                                              ‘Twin Peaks’, speech given by Andrew Haldane at the Kenilworth Chamber of Trade on 17 October 2014.

10                                                                                                                                                                                                                                                             11
Investing in a time of negative real yields: when 're-risking' can be 'de-risking'
1. A global phenomenon, affecting some countries more than others                                                                                                 1. A global phenomenon, affecting some countries more than others

              How have asset allocators responded to the twin challenges of negative real returns on government
              debt, and widening scheme deficits? In a word, defensively. Over the past six years, as UK index-linked
              yields have fallen from 1.5% to as little as -1.0%, DB schemes have almost doubled their holdings of
              index-linked gilts from just over 10% of all assets, to just under 20% - see Figure 62. If held to maturity,
              close to one fifth of their portfolio is now guaranteed to lose money, after adjusting for inflation.

              Figure 6: Asset allocation of DB schemes

              Share, per cent                                                                                   Index-linked yield, per cent

                 70                                                                                                                    2.0       Equities
                                                                                                                                                 All fixed income
                 60                                                                                                                    1.5
                                                                                                                                                 Index-linked gilts
                 50                                                                                                                    1.0       Index-linked yield,
                                                                                                                                                 (right-hand scale)
                 40                                                                                                                    0.5

                 30                                                                                                                    0.0

                 20                                                                                                                    -0.5

                 10                                                                                                                    -1.0

                  0                                                                                                                    -1.5

                 -10                                                                                                                   -2.0
                   2006         2007          2008         2009          2010         2011         2012          2013          2014

                       Source: Pension Protection Fund / Thomson Reuters / Fathom

              Index-linked gilts are attractive to DB schemes because they offer protection against both inflation
              risk and interest rate risk. By holding only index-linked gilts of an appropriate maturity, trustees can
              in principle protect with certainty their current funding position. Without doubt, for a fully funded
              scheme, this is a very sensible approach. But for an underfunded scheme, when determining the
              allocation to index-linked gilts, there is an important trade-off to be made. On the one hand, by
              allocating more to index-linked gilts, the degree of protection against a further deterioration in scheme
              funding is increased. On the other hand, by allocating more to index-linked gilts, the chance that the
              scheme is able to return to a position of full funding without considerable additional support from
              the sponsor is reduced. By allocating more to index-linked gilts, an underfunded scheme is, in a sense,
              locking-in to failure. Or, to put it another way, it is guaranteeing continued dependence on the scheme
              sponsor. This trade-off becomes all the more acute in an environment of negative yields.
              Have underfunded schemes achieved the correct balance between insurance, and risk-taking? A
              principle objective of this paper is to provide a framework in which that question can be addressed.

             2
                 P art of the increased allocation to index-linked gilts, and to fixed income assets in general, may be a consequence of rising maturity. With the
                  vast majority of schemes now closed to new members, pensions in payment account for an increasing share of scheme liabilities. Offsetting this,
                  scheme funding has deteriorated since 2008, which by itself should encourage a greater allocation to equities.

12                                                                                                                                                                                                                                         13
Investing in a time of negative real yields: when 're-risking' can be 'de-risking'
2. Why are UK index-linked yields negative? And when might they go up again?

     2. Why are UK index-linked yields negative?
     And when might they go up again?

     In this section we ask what economic theory has to say about the decline in UK index-linked yields. We divide                                             Figure 7 compares the average real return to UK government debt since 1831, with the average real rate
     the explanations into those that are global, and those that are specific to the UK.                                                                       of growth of the UK economy over the same period. They differ by just 0.1 percentage point. A similar
                                                                                                                                                               relationship holds in most other developed economies5.
     Economic models that seek to explain how individuals should, over time, make best use of their finite
     resources tend to invoke the concept of a global real risk-free rate of interest. In a world without risk, this is                                        If a country’s real rate of interest tends to match its rate of economic growth so closely, why might
     simultaneously the real reward to a household that saves a sum of money for a period of time, and the real                                                real rates of interest today be so low, both in the UK and in many other developed economies?
     cost to a firm that borrows a sum of money for a period of time in order to invest. Savings and investment                                                It is important at the outset to make clear that Ramsey’s model does nothing more than explain how both
     can differ within a country – when a country invests more than it saves it is running a current account                                                   a representative household and a representative firm ought to behave, if each is trying simultaneously to
     deficit and borrowing from abroad. But globally, savings and investment must match, and it is variations in                                               maximise its own welfare over time. The period when global index-linked yields began to fall coincided
     the global real risk-free rate of interest that ensure this is achieved period by period3.                                                                with the emergence onto the world stage of a new economic superpower – China. China is a socialist
                                                                                                                                                               state, which means that many economic decisions are in effect taken not by self-interested private
     Figure 7: UK growth and real yields since 1831                                                                                                            individuals, or by profit-maximising firms, but by a committee of central planners. Central planners,
                                                                                                                                                               whether deliberately or otherwise, will often allocate resources in a way that is very different from the
     Averages, per cent
                                                                                                                                                               predictions of benchmark economic models, which tend to assume that markets are both efficient, and
         3.0
                                                                                                                                                               perfectly competitive.
         2.5
                                                                                                                                                               Figure 8: Domestic savings
         2.0

         1.5                                                                                                                                                   Share of GDP, per cent

                                                                                                                                                                   60                                                                                                                       China
         1.0
                                                                                                                                                                                                                                                                                            All emerging economies
                                                                                                                                                                   50                                                                                                                       World
         0.5

         0.0                                                                                                                                                       40
                                     Growth                                                Real Yield
                                                                                                                                                                   30
               Source: Thomson Reuters Datastream / Fathom

                                                                                                                                                                   20

     How much should an individual choose to spend today, and how much should be put away for a rainy                                                              10

     day? That is one of the fundamental questions of economics. Writing in 1928, the mathematician                                                                 0
     Frank Ramsey developed a framework for answering this question that is still popular today4.                                                                    1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
     He demonstrated that, under certain conditions, an individual should keep saving until the additional
                                                                                                                                                                        Source: Thomson Reuters Datastream / Fathom
     return to further investment – known as the marginal product of capital – falls to a level that is closely
     linked to a country’s rate of economic expansion. In other words, his theory predicts a strong relationship
     between the rewards to saving, measured by the real risk-free rate, and growth. And here, for once, is a
     theory that appears to work.

     3
         If, for example, there were a sudden increase in desired savings around the world, but no change in desired investment, then the global real risk-   5
                                                                                                                                                                   T he yields on index-linked government debt in any particular country will differ from the global real risk-free rate for a number of reasons
         free rate would fall in order to bring the two into line.                                                                                                  including: default risk; the use of unconventional monetary policy such as quantitative easing (QE); and the operation of conventional monetary
     4
         Ramsey, F (1928).                                                                                                                                         policy, which largely determines the short-end of the index-linked curve.

14                                                                                                                                                                                                                                                                                                                    15
2. Why are UK index-linked yields negative? And when might they go up again?                                                                                      2. Why are UK index-linked yields negative? And when might they go up again?

              Figure 9: Investment                                                                                          Figure 10: World real risk-free rate

              Share of GDP, per cent                                                                                        Per cent

               50                                                                                             Japan          4.0
                                                                                                              South Korea
                                                                                                                             3.5
                                                                                                              China
               40
                                                                                                              Thailand       3.0
                                                                                                              Malaysia
                                                                                                                             2.5
               30                                                                                             US
                                                                                                                             2.0

               20                                                                                                            1.5

                                                                                                                             1.0
                10
                                                                                                                             0.5

                 0                                                                                                             0
                  1960      1965       1970   1975   1980    1985   1990   1995   2000   2005   2010   2015                     1990    1992   1994   1995    1997   1999   2001   2003   2005   2007   2009   2011   2013   2015

                     Source: Thomson Reuters Datastream / Fathom                                                                   Source: Thomson Reuters Datastream / Fathom

              Since its accession to the World Trade Organisation in 2001, China has adopted a policy of growth             There is now a growing acceptance that China’s economic model of the past ten to fifteen years has been
              through investment and net trade. It has run a series of large current account surpluses. Its investment,     fundamentally flawed. China has invested too much, and consumed too little, driving down the global
              in other words, has been more than financed through its own domestic savings. China is by some margin         marginal product of capital, and by extension the global real risk free rate. And it is now starting to face
              the world’s biggest saver. At almost 50%, its domestic savings as a proportion of its GDP is double           the consequences – which in our view are likely to include a full-blown banking crisis in China. Figure
              the global average – see Figure 8. And it is substantially higher than the average even for emerging          10 shows a measure of the global marginal product of capital derived from GESAM, Fathom’s global
              economies. By the late 1990s, China was already investing heavily, though its investment-to-GDP ratio         economic and financial market model. It has tracked index-linked yields around the world remarkably
              fell some way short of the peaks reached by the so-called ‘Asian Tigers’, including Malaysia and Thailand     closely.
              – see Figure 9. During the early 2000s, China stepped up its investment, using around 40% of its annual
                                                                                                                            There are alternative explanations for the downward trend in index-linked yields. A number of
              output to raise its productive capacity. When the global financial crisis hit, and demand for China’s
                                                                                                                            prominent economists blame secular stagnation. Born out of the experience of the Great Depression,
              exports fell, the central planners in Beijing chose to support economic growth by investing even more.
                                                                                                                            and now associated with the views of former US Treasury Secretary Larry Summers among others,
              By 2014 China’s investment-to-GDP ratio was among the largest ever recorded, anywhere in the world.
                                                                                                                            secular stagnation is used to describe a prolonged period of slow growth. Opinions differ as to the
                                                                                                                            underlying cause, even among its proponents. Some pin the blame on deteriorating demographic trends
                                                                                                                            and deficient demand, while others point to a slowdown in the rate of technological innovation.

16                                                                                                                                                                                                                                                    17
2. Why are UK index-linked yields negative? And when might they go up again?                                                                                            2. Why are UK index-linked yields negative? And when might they go up again?

              Figure 11: UK labour productivity                                                                             Figure 12: UK bank lending to non-financial corporates

              Index of output per hour, 2000 = 100                                                                          £ bilions per quarter

              140                                                                                                               25

              120                                                                                                               20

              100                                                                                                               15

               80                                                                                                               10

               60                                                                                                                5

               40                                                                                                                0

               20                                                                                                                -5

                 0                                                                                                              -10
                  1850             1875              1900    1925   1950    1975       2000                                             2005        2006   2007     2008      2009      2010      2011     2012      2013      2014      2015

                     Source: Thomson Reuters Datastream / Fathom                                                                      Source: Thomson Reuters Datastream / Fathom

              We doubt that a period of secular stagnation is able to account for much, if any of the downward trend        In our view, there are two main elements to the downward trend in UK index-linked yields – a trend
              in index-linked yields around the world. Despite its ageing population, US growth remains strong. In its      that has been in place for the best part of 20 years. The first is global, and relates to a prolonged period
              October 2015 World Economic Outlook, the IMF forecast that it would expand by 2.6% in 2015, not far           of over-investment by China – on some measures the world’s largest economy. This has driven down
              from its long-term average. Growth next year was expected to rise to 2.8%. And growth in US productivity      the marginal product of capital, and with it the global real risk-free rate of interest6. The second is UK
              has held up relatively well too, particularly in comparison to other major economies. The same cannot         specific. To quote from an article in the Bank of England Quarterly Bulletin, since the crisis hit in 2008
              be said of the UK, however. In the seven years since the crisis hit, UK productivity has barely grown at      there has been ‘reduced investment in physical and intangible capital, … impaired resource allocation,
              all. According to latest estimates, in the seven years through to 2014, output per hour worked in the UK      and unusually high firm survival rates’7. In short, the UK economy is not operating as efficiently as it
              economy grew at an average annual rate of less than 0.1%, well below its long-term average rate of            used to do, in large part because its banking system remains impaired. In turn, that has lowered the
              growth of close to 2.0%. As we show in Figure 11, for UK labour productivity to drift sideways for a period   UK’s sustainable rate of economic growth, and with it UK index-linked yields.
              of seven years is unprecedented. Fathom’s long-held view is that the dire performance of UK productivity
                                                                                                                            If we are right, then UK index-linked yields will remain low unless and until China does the right thing,
              since 2008 is a direct consequence of the financial crisis, and of the response of policy makers to that
                                                                                                                            and rebalances its economy away from investment towards consumption. But that is only part of the
              crisis. A long period of near-zero interest rates has allowed unproductive firms to remain in business.
                                                                                                                            solution. We would also need to see a radically different approach from UK policy makers. In order to
              At the same time banks, fearing a significant downturn in the quality of their assets once interest rates
                                                                                                                            address the nation’s productivity crisis, UK banks are likely to require further recapitalisation, so that
              begin to rise, have been unwilling to lend to companies, and to small- and medium-sized enterprises
                                                                                                                            they are confident enough to lend to innovative new start-ups. Meanwhile older, less productive firms
              (SMEs) in particular. As we show in Figure 12, and in contrast to the situation in the US, UK bank lending
                                                                                                                            should be allowed to fail. In short, the barriers to a full normalisation of UK index-linked yields are
              to non-financial corporations has fallen in almost every quarter since the crisis began.
                                                                                                                            considerable. Full normalisation is not going to take place overnight. Indeed, we see a genuine risk that
                                                                                                                            it does not take place at all – at least not on a timescale that is relevant to the maturing UK DB sector.

                                                                                                                            6
                                                                                                                                More recently, the QE policies adopted by a number of major central banks will have added further downward impetus.
                                                                                                                            7
                                                                                                                                Barnett et al. (2014).

18                                                                                                                                                                                                                                                          19
Measuring inflation risk

     On reaching retirement, members of a defined-benefit pension scheme will typically be entitled to receive,                                         Figure A: UK RPI Inflation
     each year, a sum of money the size of which is linked to the Retail Prices Index (RPI). From the perspective
                                                                                                                                                        Per cent
     of scheme trustees, this means that uncertainty about the future level of the RPI creates uncertainty about
                                                                                                                                                             25
     scheme liabilities. It is, in short, a source of funding risk.
                                                                                                                                                             20
     Conceptually, there are two elements to inflation risk. The first is the size of unexpected movements in
     inflation – or inflation ‘shocks’ – from one year to the next. The second is their persistence. When inflation                                          15
     rises unexpectedly, does it return quickly to its usual level, or does it remain elevated for a number of
     years? Imagine there is an unexpected increase in inflation of one percentage point. How will that affect                                               10

     scheme liabilities? In an economy where inflation returns quickly to its usual level, so that inflation at
                                                                                                                                                              5
     time t+1 does not depend at all on inflation at time t, then an unexpected increase in inflation of one
     percentage point will raise the expected level of prices at all points in the future by precisely 1%. It will                                            0
     therefore raise index-linked liabilities by 1%. At the other extreme, in an economy where there is no mean
                                                                                                                                                             -5
     reversion in inflation, so that an investor’s best guess about inflation next year is that it will be the same
                                                                                                                                                               1950              1960              1970              1980               1990             2000              2010
     as it was this year, the effects are much more pernicious. An unexpected increase in inflation of one
     percentage point will raise the expected level of prices by 1% in the first year, 2% in the second year, 3% in                                               Source: Thomson Reuters Datastream / Fathom

     the third year and so on. The impact on the price level rises without bound the further out one looks. To a
     large extent, the persistence of shocks to inflation is a consequence of the objectives, and the effectiveness
     of monetary policy.                                                                                                                                Figure B: UK Inflation Persistence10

     It is possible to test, statistically, for both the size and the persistence of inflation shocks. In doing so,                                     Long-run impact on the price level of a percentage point shock to inflation11
     and using more than two centuries of data, we find evidence that recent inflation shocks have tended                                                     5
     to be small in comparison to the average of the past8. Interestingly, we also find that they have been less
     persistent. Figure A shows actual RPI inflation since 1950. Casual observation suggests that, since the early                                            4
     1990s, RPI inflation has had a well-defined mean. The same is true of the period running up to the first oil
     shock in the early 1970s. Figure B shows the estimated long-run impact of a one percentage point shock                                                   3
     to inflation on the price level9. There are periods through the 1970s where that impact was unbounded –
     and inflation displayed no mean reversion. More recently, that long-run impact has been at or below one,                                                 2

     suggesting that inflation shocks have no persistence at all.
                                                                                                                                                              1
     Since UK policy makers began targeting inflation in the early 1990s, it appears that inflation shocks have
     not only been smaller, they have been less persistent. The first of these observations may be coincidence,                                               0
     but the second is an intended consequence of the current monetary policy framework. For now at least,                                                     1950              1960              1970              1980               1990             2000              2010
     the benefits of hedging against inflation risk may be smaller than they once were.
                                                                                                                                                                  Source: Thomson Reuters Datastream / Fathom

     8
         We estimated a simple AR(1) model of inflation over the period from 1752 to 2014. The standard deviation of the residual from that model is   10
                                                                                                                                                             Shaded areas indicate periods where the long-run impact is statistically significantly greater than one.
         1.6% over the past ten years, but 6.5% over the full sample.                                                                                   11
                                                                                                                                                             F or brief periods in the 1970s inflation displayed no mean reversion at all. This meant that, in theory at least, the long-run impact on the price
     9
         It is derived from the same simple AR(1) model described above, but estimated as a rolling regression with a window length of ten years.            level of a percentage point shock to inflation was unbounded. No data are shown for these periods.

20                                                                                                                                                                                                                                                                                                                  21
3. Alternative investment strategies for UK DB schemes

     3. Alternative investment strategies for UK
     DB schemes

     In this section we evaluate the likely performance of schemes in aggregate, and of specific classes of scheme,         Figure 13 records the distribution of possible future funding ratios of the more than 6,000 schemes
     under both a benchmark asset allocation, and a return-seeking alternative. We do this both in a world where            currently monitored by the Pension Protection Fund (PPF) under the ‘normalisation’ scenario. Figure 14
     UK index-linked yields normalise, and in a world where they do not.                                                    repeats the exercise for the ‘yields stay low’ scenario. In each case, we assume that schemes follow simple
                                                                                                                            asset allocation rules calibrated according to data presented in section 7 of the 2014 Purple Book. Put
     The results in this section are derived from Fathom’s DB pension scheme model, described in more
                                                                                                                            simply, these imply that around 80% of the portfolio is invested in equities and fixed income, with the
     detail in Appendix 1. The model is stochastic, which means that, instead of presenting point estimates
                                                                                                                            remainder distributed between cash, property and other investments, including hedge funds. For any
     for scheme funding under a variety of macro-economic and financial market scenarios, we are instead
                                                                                                                            individual scheme, the split between equities and fixed income is a function of scheme funding and
     able to assess the whole distribution of possible outcomes, taking into account uncertainty about asset
                                                                                                                            scheme maturity, with better-funded, more mature schemes holding a greater proportion in fixed income
     returns, inflation and other major determinants of scheme funding.
                                                                                                                            and vice versa.
     Figure 13: Normalisation scenario, funding distribution, benchmark AA                                                  In the ‘normalisation’ scenario, where index-linked yields climb steadily towards their long-run average of
                                                                                                                            2% over the next five to six years, the median scheme becomes fully funded by 201712. It reaches a buyout
     Assets as a share of liabilities, per cent
                                                                                                                            level of funding, which we define as a situation where assets are equal to 125% of the technical
     130                                                                                                  95th percentile
                                                                                                          50th percentile
                                                                                                                            provisions, some three years later. Even in this relatively optimistic scenario, we find that a little over 5% of
                                                                                                          5th percentile    schemes fail to reach a position of full funding within the next 20 years. These are likely to include:
      110
                                                                                                                            schemes that were poorly funded to start with; schemes that had a weak corporate sponsor; and schemes
       90
                                                                                                                            that suffered a particularly poor set of returns on their investments. In the ‘yields stay low’ scenario, the
                                                                                                                            median scheme remains underfunded for longer. And even 20 years from now, more than 10% of schemes
       70
                                                                                                                            remain underfunded in this scenario. The question for us is, by pursuing an alternative investment strategy,
                                                                                                                            could the universe of schemes do better?
       50
                                                                                                                            Figure 15: Equity allocation as a function of funding
       30
                      2016        2018            2020   2022   2024   2026   2028   2030   2032   2034                     Equity allocation, per cent

                                                                                                                                 80
            Source: Fathom
                                                                                                                                 70

                                                                                                                                 60
     Figure 14: Yields stay low scenario, funding distribution, benchmark AA
                                                                                                                                 50
     Assets as a share of liabilities, per cent

     130                                                                                                  95th percentile        40
                                                                                                          50th percentile
                                                                                                          5th percentile         30
      110

                                                                                                                                 20
       90
                                                                                                                                      30            40            50               60               70         80             90          100
                                                                                                                                                                                  Funding ratio, per cent
       70
                                                                                                                                       Source: Pension Protection Fund / Fathom

       50

       30
                      2016        2018            2020   2022   2024   2026   2028   2030   2032   2034

            Source: Fathom                                                                                                  12
                                                                                                                                 More detail on the assumptions underpinning asset returns in each scenario can be found in Appendix 2.

22                                                                                                                                                                                                                                                                      23
3. Alternative investment strategies for UK DB schemes                                                                                                                                                                                     3. Alternative investment strategies for UK DB schemes

              Figure 16: Equity allocation as a function of maturity                                                                                               Figure 17: Asset allocation strategies

              Equity allocation, per cent                                                                                                                          Share of equity and bond portfolio, per cent
                   80                                                                                                                                               60                                                                                                              Bonds
                                                                                                                                                                                                                                                                                    Equities
                   70                                                                                                                                               55

                   60                                                                                                                                               50

                   50
                                                                                                                                                                    45

                   40
                                                                                                                                                                    40

                   30
                                                                                                                                                                    35
                                                                                                                                                                                    Benchmark                     Optimal, yields stay low          Optimal, normalisation
                   20
                        0       10          20        30           40           50            60           70      80   90       100
                                                                                                                                                                          Source: Fathom
                                                     Share of pensioner liabilities in all liabilities, per cent

                        Source: Pension Protection Fund / Fathom
                                                                                                                                                                   Figure 17 shows the suggested reallocation for both the ‘normalisation’ and ‘yields stay low’ scenarios.
                                                                                                                                                                   It focuses purely on the equity and fixed income portfolios – allocations to other asset classes are
              Figures 15 and 16 show the calibrated, non-linear decision rules that make the benchmark allocation                                                  unchanged. In the benchmark allocation, the median scheme allocates 56% of its combined equity and
              to equities a function of both scheme maturity, and scheme funding13. What we are contemplating is a                                                 fixed income portfolio to fixed income, and 44% to equities, giving a spread of twelve percentage points in
              reallocation out of fixed income and into equities that makes the allocation to equities higher at every                                             favour of fixed income. Even in a world where yields remain low, our optimiser suggests this spread should
              level of scheme maturity, and at every level of scheme funding, while still allowing for substitution out                                            narrow to just over six percentage points. In a world where yields normalise, the spread should go through
              of equities and into fixed income as maturity rises and funding improves. To keep the problem tractable,                                             zero. In other words, the median scheme should hold more equities than fixed income.
              we consider only reallocations that generate a parallel upward shift in each of the curves shown
              in Figures 15 and 16. And to simplify things still further, we seek a reallocation that maximises the                                                Figure 18: Probability that a randomly chosen scheme is fully funded
              expected return to the portfolio, while keeping the variance of expected returns constant. We do this
                                                                                                                                                                   Per cent
              without regard to funding uncertainty. In other words, we look for a return-seeking reallocation that
                                                                                                                                                                   100
              deliberately ignores liability-driven investment considerations altogether.                                                                                                                                                                                           ‘Normalisation’, alternative AA
                                                                                                                                                                                                                                                                                    ‘Normalisation’, benchmark AA
                                                                                                                                                                                                                                                                                    ‘Yields stay low’, alternative AA
                                                                                                                                                                     80
                                                                                                                                                                                                                                                                                    ‘Yields stay low’, benchmark AA

                                                                                                                                                                     60

                                                                                                                                                                     40

                                                                                                                                                                     20

                                                                                                                                                                      0
                                                                                                                                                                       2014     2016       2018     2020      2022        2024      2026     2028      2030      2032        2034

                                                                                                                                                                          Source: Fathom

              13
                    here the rules conflict, which they will do more or less all of the time, we make the actual allocation to equities a simple average of the
                   W
                   requirement of each rule.

24                                                                                                                                                                                                                                                                                                                      25
3. Alternative investment strategies for UK DB schemes                                                                                                                                                                                        3. Alternative investment strategies for UK DB schemes

              How would the DB universe fare if it adopted these reallocations? Let us consider first the implications                                     Figure 20
              for scheme funding. Figure 18 records the probability that a scheme chosen at random is fully funded at
              each point in time from 2015 through to 2034. It does this for both the benchmark and the alternative,                                            Performance of the universe of DB schemes in different states of the world
              or return-seeking allocations in each of our two states of the world. A key finding is that the return-
                                                                                                                                                                                                                   'Normalisation' scenario                                 ‘Yields stay low' scenario
              seeking reallocation increases the chances that a scheme is fully funded at every horizon, and in each
                                                                                                                                                                                                         Benchmark AA     Alternative AA       Difference       Benchmark AA       Alternative AA       Difference
              state of the world. This is hardly rocket science. It should come as no great surprise that a reallocation
              in favour of assets with a higher expected return raises the chance that any scheme chosen at random                                              Probability fully funded in
                                                                                                                                                                                                            82.1              88.2                 6.2              71.6               76.9                5.3
                                                                                                                                                                10 years, per cent
              reaches a position of full funding. What is perhaps more surprising is that it appears to achieve this at
                                                                                                                                                                Standard deviation of funding
              very little cost.                                                                                                                                                                             18.1              15.1                -3.0              23.1               21.5               -1.6
                                                                                                                                                                ratio in 10 years, percentage points

                                                                                                                                                                Present value of DRCs over
              Figure 19: Funding uncertainty                                                                                                                    20 years, £ billions
                                                                                                                                                                                                           127.6              97.6              -30.0              416.6              356.3              -60.3

              Standard deviation of universe of funding ratios, percentage points
                                                                                                                                                                As a share of initial assets, per cent      10.0                7.6               -2.4              32.9               28.1               -4.8

                30                                                                                                     ‘Normalisation’, alternative AA          Probability sponsor bust in
                                                                                                                                                                                                             9.0                8.1               -0.9               11.4              10.7               -0.7
                                                                                                                       ‘Normalisation’, benchmark AA            20 years, per cent
                25                                                                                                     ‘Yields stay low’, alternative AA        Present value of deficits
                                                                                                                       ‘Yields stay low’, benchmark AA          transferred to PPF over 20 years,            8.5                6.1               -2.5              26.0               24.2               -1.8
                20                                                                                                                                              £ billions

                                                                                                                                                                As a share of initial liabilities,
                15                                                                                                                                                                                           0.5                0.4               -0.1                1.5               1.4               -0.1
                                                                                                                                                                per cent

                10
                                                                                                                                                           Source: Fathom

                 5

                 0                                                                                                                                         From society’s perspective, it could be said that the ultimate arbiter of the value of a proposed reallocation of
                  2014       2016        2018       2020        2022       2024     2026   2028   2030   2032   2034
                                                                                                                                                           assets lies in a comparison of the magnitude of the deficits that one would expect to be transferred to the PPF in
                     Source: Fathom                                                                                                                        each case. We assume that, when a scheme loses its corporate sponsor before it has become fully funded on a
                                                                                                                                                           section 179 basis, then its assets and its liabilities are transferred to the PPF. This imposes a cost on scheme
                                                                                                                                                           members, who receive less generous benefits. Because the PPF is a public body, it also imposes a cost on society
              Figure 19 records the standard deviation of possible future funding ratios across the universe of DB                                         at large. In Figure 20, we provide a number of summary statistics relating to the universe of DB schemes, for each
              schemes from 2015 through to 2034, for each allocation and in each state of the world. In the short                                          allocation and in each state of the world. Under the benchmark allocation, the present value of deficits transferred
              run, the alternative, return-seeking allocation raises funding uncertainty, in part because each scheme is                                   to the PPF is around three times as large in the ‘yields stay low’ scenario as it is in the ‘normalisation’ scenario14.
              more exposed to unexpected movements in inflation. But the increase in uncertainty is both very small,                                       But, more importantly, the present value of deficits transferred to the PPF is lower under the alternative, risk-
              and short lived. Within about three years, funding uncertainty is actually lower under the alternative                                       seeking allocation regardless of the state of the world. It is almost 30% lower in the ‘normalisation’ scenario and
              allocation, even though it appears to leave the scheme more exposed to inflation risk. The reason is that                                    close to 10% lower in the ‘yields remain low’ scenario. The alternative allocation is also more attractive from the
              the alternative, return-seeking allocation propels each scheme more rapidly towards a buyout level of                                        perspective of the corporate sponsor, who makes fewer deficit reduction contributions, and faces a lower
              funding. As the funding position improves, it de-risks. And when it reaches a buyout level of funding, it                                    prospect of failure, in each state of the world.
              de-risks completely by transferring its assets and its liabilities to an insurer. Moreover, and as we set out
              in a box on pages 20-21 of this report, since the current framework for monetary policy was established
              in the early- to mid-1990s, inflation has been unusually predictable. Inflation risk – for now at least – is
              not what it used to be.
                                                                                                                                                           14
                                                                                                                                                                The PPF publishes its own forecasts for the magnitude of the deficits it is likely receive. According to Chart 6.3 on page 16 of its July 2015 ‘Long-
                                                                                                                                                                Term Funding Strategy Update’, cumulative transfers over the next 15 years are projected to be around £7.5 billion. Results from our own model
                                                                                                                                                                suggest that, in the ‘normalisation’ scenario, using the benchmark allocation, they will be a little higher at £10.0 billion.

26                                                                                                                                                                                                                                                                                                                       27
3. Alternative investment strategies for UK DB schemes                                                                                                                                                                     3. Alternative investment strategies for UK DB schemes

              The discussion so far has concentrated on the universe of DB schemes. But are there certain classes of scheme for       Figure 21
              which an alternative, return-seeking allocation would be particularly attractive? Equally, are there other classes of
              scheme who would be better advised to stay as they are? In an attempt to address these issues, we compare                    Performance of poorly-funded and well-funded schemes in different states of the world
              results for four scheme archetypes, both with each other, and with the general population of schemes.
                                                                                                                                                                                               'Normalisation' scenario                            ‘Yields stay low' scenario
              Figure 21 presents separate summary statistics for schemes that start out well-funded, and for those that start
                                                                                                                                                                                    Benchmark AA      Alternative AA        Difference   Benchmark AA    Alternative AA    Difference
              out poorly-funded. Figure 22 presents separate summary statistics for schemes that start out with a strong
              corporate sponsor, and for those that start out with a weak corporate sponsor.                                               Schemes with low initial funding ratio15

                                                                                                                                           Probability fully funded in
                                                                                                                                                                                       51.8               64.0                12.1          44.6             49.6                5.0
              The results are largely as one might expect. The alternative, return-seeking allocation benefits poorly-                     10 years, per cent
              funded schemes more than it benefits well-funded ones, regardless of the state of the world. That is                         Standard deviation of funding
                                                                                                                                                                                       23.3               22.2                -1.0          26.3             26.2               -0.1
              because it raises the probability that a poorly-funded scheme becomes fully-funded by more than it                           ratio in 10 years, percentage points

              does the probability that a well-funded scheme becomes fully funded. And the alternative, return-                            Present value of DRCs over
                                                                                                                                                                                       80.1               63.9               -16.2         191.1            170.0           -21.0
                                                                                                                                           20 years, £ billions
              seeking allocation should be more attractive to trustees of schemes with a weak corporate sponsor than
              to trustees of schemes with a strong corporate sponsor. As a share of initial liabilities, the reduction in                  As a share of initial assets, per cent      38.8               30.6                -8.2          93.8             83.8           -10.0
              the present value of section 179 deficits transferred to the PPF resulting from the reallocation is around                   Probability sponsor bust in
                                                                                                                                                                                       10.7                 9.0               -1.7          13.8             13.5               -0.4
              twenty times larger for schemes with a weak sponsor than it is for schemes with a strong sponsor.                            20 years, per cent

                                                                                                                                           Present value of deficits transferred
                                                                                                                                                                                         6.4                4.8               -1.6          18.5             16.7               -1.8
                                                                                                                                           to PPF over 20 years, £ billions

                                                                                                                                           As a share of initial liabilities,
                                                                                                                                                                                         1.5                1.1               -0.4           4.4              3.9               -0.4
                                                                                                                                           per cent

                                                                                                                                           Schemes with high initial funding ratio16

                                                                                                                                           Probability fully funded in
                                                                                                                                                                                       99.4               99.9                 0.5          95.0             97.3                2.3
                                                                                                                                           10 years, per cent

                                                                                                                                           Standard deviation of funding
                                                                                                                                                                                         3.7                1.2               -2.5          10.5              7.8               -2.7
                                                                                                                                           ratio in 10 years, percentage points

                                                                                                                                           Present value of DRCs over
                                                                                                                                                                                         3.8                3.5               -0.2          32.3             27.3               -5.0
                                                                                                                                           20 years, £ billions

                                                                                                                                           As a share of initial assets, per cent        0.9                0.8               -0.1           7.5              6.3               -1.2

                                                                                                                                           Probability sponsor bust in
                                                                                                                                                                                         7.3                7.5                0.2           8.7              8.0               -0.7
                                                                                                                                           20 years, per cent

                                                                                                                                           Present value of deficits transferred
                                                                                                                                                                                         0.2                0.1               -0.1           1.7              2.2                0.5
                                                                                                                                           to PPF over 20 years, £ billions

                                                                                                                                           As a share of initial liabilities,
                                                                                                                                                                                         0.0                0.0                0.0           0.4              0.5                0.1
                                                                                                                                           per cent

                                                                                                                                      Source: Fathom

                                                                                                                                      15
                                                                                                                                           Schemes with an initial funding ratio in the lower quartile of all initial funding ratios
                                                                                                                                      16
                                                                                                                                           Schemes with an initial funding ratio in the upper quartile of all initial funding ratios

28                                                                                                                                                                                                                                                                                       29
3. Alternative investment strategies for UK DB schemes

                                                                                                                                                                      4. Conclusions

              Figure 22                                                                                                                                               Index-linked gilt yields have been negative for more than four years and are close to record lows. Falling
                                                                                                                                                                      real yields on government debt are neither a recent phenomenon, nor one that is specific to the UK. The
                   Performance of schemes with a weak and a strong sponsor in different states of the world                                                           trend is common to most major economies, and it has been in place for the best part of 20 years. We
                                                                                                                                                                      have argued that a full normalisation of UK index-linked yields, which are lower than those seen in a
                                                                        'Normalisation' scenario                                 ‘Yields stay low' scenario
                                                                                                                                                                      number of other countries, including the US, would require both a rebalancing of China’s economy, and
                                                            Benchmark AA        Alternative AA       Difference        Benchmark AA    Alternative AA    Difference
                                                                                                                                                                      a radically different approach from UK policy makers towards the UK productivity crisis. These changes
                   Schemes with weak sponsor17                                                                                                                        will not happen overnight, and indeed may not happen at all on a timescale that is relevant to the
                                                                                                                                                                      maturing UK DB sector.
                   Probability fully funded in
                                                                79.2                86.8                 7.6              67.6             74.6                7.0
                   10 years, per cent
                                                                                                                                                                      UK DB schemes have responded to the decline in index-linked yields by almost doubling their exposure
                   Standard deviation of funding ratio                                                                                                                to index-linked gilts. Taking into account the fact that the vast majority of UK DB schemes are
                                                                21.3                17.3                -4.0              25.8             23.9               -1.9
                   in 10 years, percentage points
                                                                                                                                                                      underfunded, this strategy appears defensive. In this paper we have evaluated an alternative, return-
                   Present value of DRCs over
                   20 years, £ billions
                                                                26.8                21.1                -5.7              90.7             78.1           -12.6       seeking strategy under two different macro-economic and financial market scenarios. In a world where
                                                                                                                                                                      yields normalise over a number of years, we find that a sizeable reallocation requiring schemes to hold
                   As a share of initial assets, per cent        8.4                 6.5                -1.9              28.8             24.7               -4.1
                                                                                                                                                                      more equities than fixed-income assets could deliver significant benefits. The probability that any given
                   Probability sponsor bust in                                                                                                                        scheme became fully funded would increase, while funding uncertainty would reduce beyond the very
                                                                26.0                24.1                -2.0              30.7             29.7               -1.0
                   20 years, per cent
                                                                                                                                                                      near term. Fewer schemes would transfer to the PPF, which means that fewer members would see their
                   Present value of deficits transferred
                   to PPF over 20 years, £ billions
                                                                 7.7                 4.8                -2.9              23.8             19.3               -4.5    benefits reduced. The present value of deficit reduction contributions would be lower, which might
                                                                                                                                                                      benefit society if it lead to greater investment in fixed capital. The reallocation would be of particular
                   As a share of initial liabilities,
                                                                 1.8                 1.1                -0.7               5.6              4.6               -1.1    benefit to poorly-funded schemes, and to those with a weak corporate sponsor. In a world where yields
                   per cent
                                                                                                                                                                      stay low, the ideal reallocation out of fixed income and into equities would be smaller. Nevertheless, it
                   Schemes with strong sponsor18
                                                                                                                                                                      would confer similar benefits.
                   Probability fully funded in                                                                                                                        It goes more or less without saying that a group of trustees who chose to reallocate out of fixed income
                                                                83.4                88.2                 4.8              73.8             78.2                4.3
                   10 years, per cent
                                                                                                                                                                      and into equities on the eve of the global financial crisis would be regretting that decision today.
                   Standard deviation of funding ratio
                   in 10 years, percentage points
                                                                16.3                14.6                -1.7              21.5             20.0               -1.5    Between December 2007 and October 2015, the average annual return to UK equities has been more
                                                                                                                                                                      than two percentage points below the average annual return to conventional gilts.
                   Present value of DRCs over
                                                                34.3                27.4                -6.9             113.6             95.7           -17.9
                   20 years, £ billions
                                                                                                                                                                      Clearly, re-risking does not pay off in all circumstances. Specifically, re-risking would not pay off if
                   As a share of initial assets, per cent       10.7                 8.7                -2.1              35.7             30.3               -5.4    index-linked yields were to fall materially from here, nor would it pay off if there were a significant
                   Probability sponsor bust in
                                                                 0.4                 0.1                -0.2               1.1              0.8               -0.4
                                                                                                                                                                      change in the monetary policy framework, such as a doubling of the inflation target. While we cannot
                   20 years, per cent
                                                                                                                                                                      rule out either of these options entirely, we regard them as low probability events. That is why we
                   Present value of deficits transferred                                                                                                              conclude that, in recent years, the asset allocation of UK DB schemes has become too defensive. A
                                                                 0.2                 0.1                -0.1               1.5              1.3               -0.2
                   to PPF over 20 years, £ billions
                                                                                                                                                                      reallocation out of fixed income and into equities would prove beneficial, particularly to poorly-funded
                   As a share of initial liabilities,
                   per cent
                                                                 0.0                 0.0                 0.0               0.4              0.3               -0.1    schemes with a weak corporate sponsor, in what we see as some of the more likely macro-economic
                                                                                                                                                                      and financial market scenarios.
              Source: Fathom

              17
                   Sponsors financial liabilities as a proportion of its financial assets are in the upper quartile
              18
                   Sponsors financial liabilities as a proportion of its financial assets are in the lower quartile

30                                                                                                                                                                                                                                                                                 31
Appendix 1: Fathom’s DB pension model                                                                       Appendix 2: Understanding the ‘normalisation’
                                                                                                                 and ‘yields stay low’ scenarios

     Fathom’s DB pension model takes a bottom-up approach to the calculation of scheme liabilities.              In the ‘normalisation’ scenario, index-linked yields return to their long-run average of around 2% over
     We assume that the sponsoring firm employs a mixture of male and female staff of all ages that is           a period of seven to eight years. Inflation expectations remain close to target. With an inflation risk
     representative of the UK workforce as a whole, as measured by the Office for National Statistics (ONS).     premium on conventional gilts of around half a percentage point, this means that conventional yields
     Active scheme members receive a level of pay commensurate with their age and their sex as reported          peak at just over 5% in this scenario. Equity returns are determined by a dividend discount model, with
     in the Annual Survey of Hours and Earnings (ASHE). Each year, an active member of the scheme resigns        the equity risk premium (ERP) set at 4%. That is a little below the average observed excess return to UK
     from the firm with fixed probability q and becomes a deferred member. The parameter q was chosen            equities since the 1930s19. Equities suffer in the short term in this scenario as the discount rate rises.
     so that, given a plausible set of mortality assumptions, the predicted mix of active members, deferred      Thereafter, they return close to 9% per annum in cash terms.
     members and pensioners was representative of the national average as recorded in the Pension
                                                                                                                 In the ‘yields stay low’ scenario, index-linked yields fail to turn positive, drifting between -1% and
     Protection Fund’s Purple Book for 2014. We assume that all benefits accrued since 1997 have been
                                                                                                                 0%. Conventional yields are correspondingly weaker. Equities suffer less in the short term – there
     indexed to RPI under an LPI 0-5 rule. Finally, we assume that the scheme closed to new members in
                                                                                                                 is no sudden rise in the discount rate. But they perform less well further out than they do in the
     2007. We took this decision on the grounds that, at that time, the proportion of DB schemes that were
                                                                                                                 ‘normalisation’ scenario.
     closed to new members was close to 50%.

     Rather than focus on just a single scheme, we attempt to capture the distribution of possible outcomes
     across all DB schemes. To achieve this, we run a large number of stochastic simulations so that, in
     addition to modelling the impact of uncertain asset returns, we are able to consider the prospects for a
     wide spectrum of schemes, including those that start out with both weak and strong funding positions.
     Specifically, we assume that initial funding ratios across all schemes are normally distributed, with
     parameters based on data provided in the PPF’s Purple Book for 2014.

     We employ two simple asset allocation rules that make the allocation to fixed income an increasing, and
     the allocation to equities, a decreasing function of scheme maturity and scheme funding. As with the
     initial funding ratio, we calibrate the asset allocation rules using data provided by the PPF. The Purple
     Book contains information on the portfolio of assets that are held by schemes with a funding ratio
     that falls into one of four ranges, and by schemes with a share of pension-in-payment liabilities in all
     liabilities that falls into one of five ranges. We used the method of polynomial regression to estimate
     two smooth decision rules. One makes the proportion of all assets that are allocated to equities a non-
     linear function of the funding ratio, while another makes the proportion of all assets that are allocated
     to equities a non-linear function of scheme maturity. The two rules are illustrated in the main text in
     Figures 15 and 16.

                                                                                                                 19
                                                                                                                      Some investors argue that the ERP is lower than it used to be. We have investigated the sensitivity of our results to alternative assumptions
                                                                                                                      about this key parameter. We find that, even if the ERP is a low as 2%, our main finding still holds. A reallocation out of fixed income into
                                                                                                                      equities both improves the likelihood of achieving a position of full funding while lowering the present value of PPF transfers, even if the ERP is
                                                                                                                      as low as 2%.

32                                                                                                                                                                                                                                                                          33
References
     Barnett, A, Batten, S, Frankin, J and Sebastia-Barriel, M (2014) ‘The UK productivity puzzle’, Bank of England Quarterly Bulletin, pp. 114-126.

     Ramsey, F (1928) ‘A mathematical theory of saving’, Economic Journal, Vol. 38, No. 52, pp. 543-559.

     Disclaimer
     This publication has been prepared for general guidance on matters of interest only, and does not constitute professional advice. You should
     not act upon the information contained in this publication without obtaining specific professional advice. No representation or warranty
     (express or implied) is given as to the accuracy or completeness of the information contained in this publication, and, to the extent permitted
     by law, Pension Corporation, its members, employees and agents do not accept or assume any liability, responsibility or duty of care for any
     consequences of you or anyone else acting, or refraining to act, in reliance on the information contained in this publication or for any decision
     based on it.

     ‘Pension Corporation’ refers to Pension Insurance Corporation plc and its affiliated entities. Pension Insurance Corporation is authorised
     by the Prudential Regulation Authority and regulated by the Financial Conduct Authority and Prudential Regulation Authority FRN 454345.

34
You can also read