Technical efficiency in the English Football Association Premier League with a stochastic cost frontier
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Applied Economics Letters, 2007, 14, 731–741 Technical efficiency in the English Football Association Premier League with a stochastic cost frontier Carlos Pestana Barrosa,* and Stephanie Leachb a Instituto Superior de Economia e Gestão, Technical University of Lisbon, Rua Miguel Lupi, 20 1249-078 Lisbon, Portugal b Tanaka Business School, Imperial College, London This article uses an econometric frontier model to evaluate the technical efficiency of English Premier League clubs from 1998/99 to 2002/03 combining sport and financial variables. A Cobb–Douglas cost specifica- tion of the technical efficiency effects model is used to generate football club efficiency scores, allowing for contextual variables which affect inefficiency. We conclude that the efficiency scores are mixed. A policy is devised for the management of this sector. I. Introduction The motivation for the present article is derived from stylised facts observed in the English football In this article, we measure the technical efficiency industry, such as the clubs which overspend in order of the clubs playing in the English Premier League to achieve sporting success, but then fail to do so, with a Cobb–Douglas cost frontier model, using e.g. Leeds United. In this case, the failure may be due data obtained in the Deloitte & Touche reports on to uneven playing fields in the Premier League, in English football from 1998/99 to 2002/03. Previous which the market leaders in terms of turnover appear research into the English Premier League has made to be virtually guaranteed sporting success. In this use of data envelopment analysis (DEA), e.g. Haas case, the clubs playing in sub-championships of their (2003b) and of the stochastic frontier model, Dawson own, and with very different objectives from the few et al. (2000). However, none of the articles adopted elite clubs, sometimes start overspending in an the stochastic frontier model with contextual vari- attempt to achieve the elite position, but usually ables, known as the technical efficiency effects model fail to do so. Alternatively, failure may be due to (Coelli et al., 1998). technical inefficiency, since when a club starts over- This article analyses the efficiency of the English spending it expects to overcome the uneven status Premier League with the use of a technical efficiency quo, but may lack the managerial skills to do so. model, allowing for contextual variables which may Additional reasons are exogenous contextual effects, affect the clubs’ performance. In fact, based on the such as the population and income of the club’s fan sports economics literature (El-Hodiri and Quirk, base, which defines an inescapable environment that 1971; Fort and Quirk, 1995) it is expected that the condemns clubs with small bases to life outside clubs’ fan base will have a major effect on their the top. Finally, there are exogenous shocks such performance. As the club base is composed of the as the Abramovich effect, presently observed at population and income in the club area, these Chelsea, which translates into changes in the relative contextual variables have to be included in the cost efficiency of the clubs in a league, circumventing function. the club base. *Corresponding author. E-mail: cbarros@iseg.utl.pt Applied Economics Letters ISSN 1350–4851 print/ISSN 1466–4291 online ß 2007 Taylor & Francis 731 http://www.tandf.co.uk/journals DOI: 10.1080/13504850600592440
732 C. P. Barros and S. Leach This article extends previous research into Premiership teams spending heavily and incurring football efficiency, adopting a stochastic frontier operating losses in the hope of achieving a certain model, alongside Hoeffler and Payne (1997) and position guaranteeing qualification for European Dawson et al. (2000) to evaluate the technical competition. efficiency of the English Premier League football In order to compete for playing talent with other clubs. However, this article adopts the technical major teams in Europe (e.g. Real Madrid and efficiency effects model, found in Coelli et al. Juventus), English teams have had to increase their (1998), which allows for contextual variables in the spending on wages in order to attract the best players. cost function. A sample of the clubs that played Furthermore, the biggest teams in England, notably consecutively in the league in the years under analysis Manchester United, Arsenal, Liverpool and more (1998/99 to 2002/03) is used. The use of such clubs recently Chelsea, have increasingly imported players ensures balanced panel data and is needed (and in the case of the latter three, managers) from to obtain similar average scores over the period at ‘overseas’ with the result that perhaps only a handful club level. of English players have a place in the starting 11. The article is organized as follows: in Section II, we Currently the starting 11 at Arsenal includes two describe the institutional setting; in Section III, English players. Two of the world’s top ten transfer we survey the literature on the topic; in Section IV, records belong to Manchester United, and, over the we present the theoretical framework; in Section V, past two seasons, Chelsea has spent over £200 million the data and results are presented; in Section VI, the on new players. Not only do these big clubs have efficiency rankings are presented; in Section VII, to compete in Europe, but also in traditional cup we discuss the results and, finally, in Section VIII competitions (such as the League Cup and the FA we draw conclusions. Cup) and in the domestic league, which tends to cause some clubs to field ‘reserve’ sides in the less glamorous competitions. Thus, it appears that some clubs create alternative squads, with one set of II. Institutional Setting players competing in less prestigious games, whilst the ‘superstars’ play in the more celebrated and The English Premier League is the most profitable lucrative matches. football league, not only in Europe but also world- Hence, the finance and performance of these wide, and contains the world’s richest club: leading clubs can be very complex indeed. Some Manchester United. Prior to 1992, there were four clubs have started expanding into new markets and divisions grouped under one league in England. However, during the late 1980s and early 1990s, the entered into sponsorship deals. Manchester United top teams in England sought to improve their share has entered into a marketing agreement with the of television broadcasting revenue and became less New York Yankees, and Arsenal recently signed willing to subsidise smaller teams through the a deal with Emirates Airlines amounting to £100 redistribution of this television income. However, million for stadium and shirt sponsorship. Football in even though the English Premier League is the most England is big business, and vital to the success of prosperous, it is not uncommon to find genuine this business is success – not only on the pitch, concern for individual clubs’ financial health. but also financial success and the development Not only does the threat and subsequent effect of of an efficiently produced product. In Table 1, relegation to the smaller and less lucrative First we present 12 English football clubs that Division sometimes leave former Premiership clubs remained in the Premiership throughout the seasons (e.g. Derby County and Bradford City) near financial analysed. ruin, but they also run the risk of gambling and Table 1 shows that Manchester United ranks first missing out on lucrative European championships in terms of points, which translates into the team’s such as the Champions League and UEFA Cup. position at the end of the season, followed by Arsenal Most notably, Leeds United invested heavily in and Newcastle. Leeds ranks first in the ratio of playing talent only to miss out on qualification for wages/points, followed by Manchester. Finally, the Champions League in 2002, thus eliminating Liverpool ranks first in turnover, followed by a large sum of expected income and leading to a Manchester United. large-scale sell-off of playing talent. During the These rankings establish a positive correlation turmoil, Leeds were ultimately relegated. So, achiev- between turnover, wages and position, signifying ing success requires spending, but with that that sports results and financial results are closely comes risk and it is not uncommon to see many related.
Technical efficiency in the EPL 733 Table 1. Figures in 2002/03 season Football club Points Wages (£m) Ratio wages/points Turnover (£m) Arsenal 78 60 569 777 103 801 Aston Villa 45 32 310 718 45 447 Chelsea 67 54 365 811 93 027 Everton 59 29 735 504 46 781 Leeds United 47 56 595 1204 64 005 Liverpool 64 54 431 850 1 013 981 Manchester United 83 79 517 958 174 936 Middlesbrough 49 29 428 601 40 229 Newcastle United 69 45 195 655 96 689 Southampton 52 26 666 513 48 875 Tottenham Hotspur 50 38 024 760 66 506 West Ham United 42 33 342 794 51 712 Source: Deloitte & Touche (2004). III. Literature Survey two articles using the stochastic econometric frontier are, in our view, clearly insufficient for analysing such There are two contemporary approaches to measur- an important issue in the sports market context. With ing efficiency: first, the econometric or parametric the present article, we seek to widen the scope of approach, and, second, the nonparametric or sports economics in this specific respect and to draw DEA approach. Unlike the econometric stochastic the attention of other researchers to this neglected frontier approach, DEA permits the use of multiple aspect of sports management. inputs and outputs, but does not impose any functional form on the data, neither does it make distributional assumptions for the inefficiency term. Both methods assume that the production function of IV. Theoretical Framework the fully efficient decision-making unit is known. In practice, this is not the case and the efficient isoquant In this article, we adopt the stochastic cost econo- must be estimated from the sample data. Under such metric frontier approach. The frontier approach, first conditions, the frontier is relative to the sample proposed by Farrell (1957), was based on cost considered in the analysis. functions and came to prominence in the late 1970s An important advantage of the econometric as a result of the work of Aigner et al. (1977), Battese frontier is that there are a number of well-developed and Corra (1977) and Meeusen and van den Broeck statistical tests available for investigating the validity (1977). The adequacy of a cost or production of the model specification – tests of significance for function depends on the environment in which the the inclusion or exclusion of factors, or for verifying units analysed operate. In an environment where the functional form. The accuracy of these hypotheses the ultimate objective is to maximise sales and profits, depends to some extent on the assumption of the producers face exogenously determined input normality of errors, which is not always fulfilled. prices and output prices and attempt to allocate A second advantage of the econometric frontier is inputs and outputs so as to maximise sales. Assuming that if a variable which is not relevant is included, it this is the main strategy at football clubs, the will have a low or even zero weighting in the calcu- production frontier is the most adequate model for lation of the efficiency scores, so that its impact is analysing efficiency (Kumbhakar, 1987). However, likely to be negligible. This is an important difference when we have several outputs, it is better to adopt a from DEA, where the weights for a variable are cost frontier approach, relying on the duality theory usually unconstrained. A third advantage of the (Cornes, 1992). econometric frontier is that it permits the decom- The general frontier cost function, which is dual to position of deviations from efficient levels into ‘noise’ the production function proposed by Aigner et al. (or stochastic shocks) and pure inefficiency, while (1977) and Meeusen and Van den Broeck (1977), DEA classifies the whole deviation as inefficiency. is as follows: Table 2 lists the characteristics of the articles reviewed. Costit ¼ 0t þ it Pit þ it Yit þ ðVit þ Uit Þ Nine articles using DEA, three articles using a deterministic econometric frontier approach and i ¼ 1, 2, . . . , N; t ¼ 1, 2, . . . , N ð1Þ
734 Table 2. Literature survey of frontier models on sports Articles Method Units Inputs Outputs Prices Barros and Santos (2005) DEA-CCR model and Soccer clubs in the first Supplies and services Match receipts, mem- – DEA-BCC model Portuguese league expenditures, wage bership receipts, expenditures, amorti- sponsorship receipts, zation expenditure, TV receipts, gains on other costs players, financial receipts, points won, tickets sold Haas (2003a) DEA-CCR and DEA- 12 USA soccer clubs Players’ wages, coaches’ Points awarded, number – BCC model observed in year 2000 wages, stadium utili- of spectators and total zation rate revenue Haas (2003b) DEA-CCR and DEA- 20 English Premier Total wages, coache’s Points, spectators and – BCC model League clubs salary, home town revenue observed in 1 year population (2000/01) Barros and Santos (2003) DEA-Malmquist index 18 training activities of Number of trainers, Number of participants, the sports federations, trainers’ remunera- number of courses, 1999–2001 tion, number of number of approvals administrators, administrators’ remu- neration and physical capital Barros (2003) DEA-allocative model 19 training activities of Number of trainers, Number of participants, Price of trainers, price of the sports federations, number of adminis- number of courses, administrators, price 1998–2001 trators, physical number of approvals of capital capital Fizel and D’Itri (1997) DEA-CCR model in 147 college basketball Player talent, opponents’ Winning percentages – first stage and regres- teams, 1984 to 1991 strength sion analysis in second stage Fizel and D’Itri (1996) DEA-CCR model Baseball managers Player talent, opponents’ Winning percentages – strength C. P. Barros and S. Leach
Porter and Scully (1982) A linear programming Major league baseball Team hitting and team Team percentage wins – technique (probably teams, 1961 to 1980 pitching DEA-CCR) Dawson et al. (2000) Stochastic Cobb– Sample of English Player age, career league Winning percentages – Douglas frontier football managers, experience, career model 1992 to 1998 goals, number of pre- vious teams, league appearances in the previous season, goals scored, player divi- sional status Hadley et al. (2000) Deterministic frontier National football league Twenty-four indepen- Team wins – model teams, 1969/70 to dent variables Technical efficiency in the EPL 1992/93 describing attack and defence. Audas et al. (2000) Hazard functions English professional Match result, league Duration (measured by soccer, 1972/73 to position and manager the number of league 1996/97, match level age, manager experi- matches played) data ence, player experience Hoeffler and Payne (1997) Stochastic production 27 NBA teams, 1992– Ratio of field goal per- Actual number of wins frontier 1993 centage, ratio of free throw percentage, ratio of offensive rebounds, ratio of defensive rebounds, ratio of assists, ratio of steals, ratio of turnover and differ- ence in blocked shots Scully (1994) Deterministic and 41 basketball coaches, Team hitting and team Winning percentages – stochastic Cobb– 1949/50 to 1989/90 pitching Douglas frontier model Zak et al. (1979) Cobb–Douglas determi- National basketball Ten variables of pitch Ratio of final scores – nistic frontier model association teams performance such as ratio of steals, ratio of assists 735
736 C. P. Barros and S. Leach where Cit represents a scalar cost of the i decision- inefficiency, Zit should be included in the cost making unit under analysis in the t-th period, Pit is function. a vector of input prices, and Yit is a vector of output The parameters of the model (, , and ) are descriptors used by the i-th club in the t-th period. estimated using the maximum-likelihood estimator; The error term Vit is the traditional error term the likelihood function can be found in Battese and of econometric models, assumed to be independently Coelli (1988). Thus, the technical inefficiency of the and identically distributed, which represents the effect i-th club at time t is: of random shocks (noise) and is independent of Uit. TEit ¼ exðUit Þ ¼ expðzit Wit : ð4Þ The inefficient term Uit represents technical ineffi- ciencies and is assumed to be positive and distributed The conditional expectation of TE is defined under normally with zero mean and variance U2 . The the half-normal assumption: Uit positive disturbance is reflected in a half-normal " # independent distribution truncated at zero, Ui i =i E ¼ i þ i ð5Þ Nðmit , U2 Þ, signifying that each club’s production "i1 , . . . , "it i =i must lie on or above its cost frontier, but above the level of one. This implies that the two effects, the V where ip¼ i þ ð1 ffi i Þð"i Þ, i ¼ 1=ð1 þ ð=Ti Þ ffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi effect, which is a random shock, and the U effect, and i ¼ U2 =ð1 þ Ti Þ. is the mean value of the which is a management shock controlled by the distribution and T is the time period of the panel, office, cause any deviation from the frontier. is the standard normal distribution, and is the The mean inefficiency of the technical efficiency respective cumulative distribution function (Coelli effects model, in Coelli et al. (1998) is a deterministic et al., 1998; Kumbhakar and Lovell, 2000). function of p explanatory variables: mit ¼ zit ð2Þ where is a p 1 vector of parameters to be V. Data estimated. Following Battese and Corra (1977), the total variance is defined as 2 ¼ V2 þ U2 . The To estimate the cost frontier, we used balanced panel contribution of the error term to the total variation is data on English Premier League Football clubs in the as follows: V2 ¼ 2 =ð1 þ 2 Þ. The contribution of the years 1998/99 to 2002/03 (12 clubs 5 years ¼ 60 inefficient term is as follows: U2 ¼ 2 2 =ð1 þ 2 Þ, observations). where V2 is the variance of the error term V, U2 is the Frontier models require the identification of inputs variance of the inefficient term U and is defined (resources) and outputs (transformation of as ¼ U =V , providing an indication of the relative resources). Several criteria can be used. Firstly, one contribution of U and V to ". empirical criterion is the availability of data. It is The inefficiencies in Uit in Equation 1 can be important for the applicability of the model results specified as: that football clubs ‘buy in’ to the process, that the Uit ¼ zit þ Wit ð3Þ measures of inputs and outputs are relevant, that the appropriate archival data are available and that where Wit is defined by the truncation of the normal ‘more is better’ in the case of outputs. Usually the distribution with mean zero and variance 2. Using criterion of available archival data is used, since it this parameterisation, a test can be constructed to encompasses all the previous criteria and therefore determine whether the estimated frontier is actually means that the availability of data is the first criterion stochastic; ¼ 0 implies that the variance associated in input and output selection. Secondly, the literature with the one-sided (efficiency) errors, U2 , is zero, survey is a way of ensuring the validity of the research meaning that these deviations from the frontier are and therefore another criterion to be taken into better represented as fixed effects in the production account. The final criterion for measurement selec- function. Therefore, a test of the null hypothesis that tion is the professional opinions of sports managers. ¼ 0 against the alternative hypothesis that is In this article, we follow these three criteria. positive is used to test whether deviations from the Based on the available data span, we estimated frontier are stochastic and whether one should a generalized Cobb–Douglas stochastic cost function. proceed with the estimation of parameters related to We transformed the variables in keeping with the sources of inefficiency within the context of a the description column of Table 3. We adopted stochastic production frontier. Failure to reject the the traditional log–log specification to allow for the null hypothesis suggests that the determinants of possible nonlinearity of the frontier.
Technical efficiency in the EPL 737 Table 3. Descriptive statistics of the data Variable Description Minimum Maximum Mean SD Log cost Logarithm of operational cost in pounds at 4.23 5.16 4.741 0.188 constant price 1999 ¼ 100 Log PL Logarithm of price of players measured by 2.55 3.49 3.053 0.217 dividing total wage by the number of players Log PK1 Logarithm of price of capital measured by 2.08 2.99 2.612 0.202 dividing the amortisation of players by the number of players Log PK2 Logarithm of price capital measured by divid- 0.30 1.89 0.886 0.499 ing stadium facilities expenditures by net assets and liabilities Log points Logarithm of the points obtained in the season 1.61 1.96 1.760 0.095 Log attendance Logarithm of the number of tickets sold in the 4.18 4.83 4.556 0.127 season Log turnover Logarithm of turnover in the season, pounds 4.13 6.01 4.736 0.279 at constant price 1999 ¼ 100 Log population Logarithm of the population in the city of the 5.830 7.016 6.649 6.618 club Log income Logarithm of the income of the city of the 4.144 4.507 4.342 3.742 club, pounds at constant price 1999 ¼ 1000 European Dummy variable, which is one for clubs 0 1 0.33 – participating in the European cups in each season We noted that the range is narrow, indicating that Table 4. Stochastic Cobb–Douglas panel cost frontier model the clubs in the sample are of a similar size in terms Variables Coefficients (t-ratio) of inputs and outputs, but that there is a very wide difference in the population and income of the club Constant (0) 2.198 (2.473) Log PL (1) 0.872 (3.185) bases. The rationale for using capital-players needs Log PK1 (2) 0.101 (2.777) a justification. Football clubs use players as an active, Log points (3) 0.543 (1.840) tradable commodity in order to capitalise on their Log attendance (4) 0.301 (2.085) market value. Moreover, football clubs are allowed Log Turnover (5) 0.400 (3.064) to amortise the value of the football player on the Constant (0) 0.899 (0.190) Log population (1) 0.308 (1.260) balance sheet. Log income (2) 0.303 (3.553) European (3) 0.046 (1.172) 2 ¼ V2 þ U 2 0.369 (4.939) Results ¼ U2 = 2 0.0006 (3.868) Log(likelihood) 13.693 In this study, we estimated a Cobb–Douglas stochas- Lagrange test 0.366 tic cost function with three input prices (one price Observations 60 of labour and two prices of capital), three outputs Notes: Dependent variable log of total cost. t-Statistics in (points, attendance and turnover) and contextual parentheses are below the parameters, those followed by * variables (population and income in the club area and are significant at the 1% level. whether or not the club is playing in the European leagues). Cit PLit PK1it of efficiency that are controlled by management log ¼ 0 þ 1 log þ 2 log (labour, capital, attendance and turnover) and for PK2it PK2it PK2it the contextual factors that are beyond managerial þ 3 logðPointsÞit þ 4 LogðAttendanceÞ control (population, income, European). The vari- þ 5 log Turnoverit þ ðVit þ Uit Þ ables were defined and characterized in Table 3. Ui ¼ 0 þ 1 log Populationit Table 4 presents the results obtained for the stochastic frontier using Frontier 4.1 from Coelli þ 2 logðIncomeit Þ þ 3 log Europeanit ð6Þ (1996), with a half-normal distribution specification. This is the cost frontier model, known as the We can see that the Cobb–Douglas cost function technical efficiency effects model, found in Coelli specified above fits the data well, as the R-squared et al. (1998), because it accounts for the causes from the initial ordinary least-squares estimation that
738 C. P. Barros and S. Leach was used to obtain the starting values for the and attendance. This means that it is costly for maximum-likelihood estimation is in excess of 85% football clubs to generate turnover from their and the overall F-statistic is 282.02. We can also activity. However, such generation of turnover is see that the variables have the expected signs, with independent of performance on the pitch, since the operating cost increasing with the price of labour points and attendance contribute negatively to and the price of capital-players. Moreover, the total costs. Moreover, the contextual variables play a role cost decreases with points, attendance, population in this context, with the population of the club base and European. Finally, the total cost increases with contributing negatively to costs, reflecting support the price of labour, the price of capital, turnover and for the club both through the contributions of season income. The frontier parameters are all statistically ticket holders and through attendance. Finally, significant and the inefficient error term () is 0.6% participation in European competitions also contri- of the total variance, which is a low value when butes negatively to costs, as a result of the bonuses compared with other industries, such as banking earned in European competitions. (Drake and Weyman-Jones, 1996; Ashton, 2001). The income of the club base is, however, positively related to costs, reflecting congestion costs in the big cities. Secondly, scale in a Cobb–Douglas func- VI. Efficiency Rankings tion is defined as the sum of the parameters and, in the present case, the cost elasticity is equal to Table 5 presents the results of the time-invariant 0.429 at the sample mean, signifying decreasing efficiency scores computed from the residuals. returns to scale. Thus, a 10% increase in outputs Technical efficiency is achieved, in a broad economic leads to about a 4.29% increase in costs. The inverse sense, by the unit which allocates resources without of this is larger than unity, indicating increasing waste, and thus the concept refers to a situation returns to scale on production. This result means that on the frontier. A unit with a score equal to one is on scale is a major issue in the football industry, a result the frontier and those with a score lower than one confirmed by the DEA research (Haas, 2003b). are above the cost frontier of best practices. The value Thirdly, we can see that the elite clubs (Manchester of waste is measured by the difference between United, Arsenal and Chelsea) are the least efficient one and the score, so that, for example, the waste whenever we include contextual variables in the of Arsenal is 1 0.901 ¼ 0.099. This is a small waste analysis. The meaning of this ranking, which includes when compared with the values observed in other sports and financial questions, is that despite being sectors of activity. league champions, these clubs use too many resources We can see that the mean score is 96%. This score to win, and therefore they have a tendency to perform suggests that football clubs could reduce their output very well in terms of sport but not in terms of finance. cost by 3% without decreasing their input, which, The second-tier clubs, those clubs which, despite not in this case, is the price of labour and the price winning, represent the country in the European cups of capital-players. The maximum football club (e.g. Liverpool and Newcastle), are better positioned score was naturally 1, which was achieved by in the efficiency rankings. However, the best situation Middlesbrough, while the minimum efficiency score is obtained by the third-tier clubs, those clubs which was 96% and was achieved by Arsenal in the first are playing in sub-championships of their own, with three years and then by Chelsea. The median was very different objectives from the few elite clubs. 97%, which was smaller than the mean. Therefore, Clubs such as Middlesbrough and Southampton there are more clubs below the mean than above manage their position in the league prudently. the mean. The SD was 1.3%. These efficiency scores Therefore, the general conclusion is that the three are high in comparison with those found elsewhere clusters of clubs observed have different managerial in other activities, such as banking (Ashton, 2001). objectives, and that scale, overspending and manage- High efficiency scores are consistent with efficient rial skills are necessary to win the league. Fourthly, and more competitive organisations, such as those the mean efficiency of the clubs in the league is observed in sports. relatively high, when compared with other industries (Ashton, 2001). This signifies that, on the pitch, football clubs are scrutinized to the extreme. In the VII. Discussion stock exchange, football clubs are scrutinised along- side the other quoted firms. Therefore, despite some What is the meaning of these results? Firstly, it failures observed, this is an industry that is much can be seen that the cost increases with all factors more closely scrutinised than the average organisa- of production, with the exception of points tion, which results in a high level of efficiency.
Table 5. Efficiency scores Technical efficiency in the EPL Efficiency scores Efficiency scores Efficiency scores Efficiency scores Football clubs in 1998/99 Football clubs in 1999/2000 Football clubs 2000/01 Football clubs 2002/03 Middlesbrough 1.0000 Middlesbrough 1.0000 Middlesbrough 1.0000 Middlesbrough 1.0000 Southampton 0.9924 Newcastle 0.9939 Southampton 0.9932 Southampton 0.9946 Newcastle 0.9924 Southampton 0.9927 Newcastle 0.9930 Leeds 0.9940 Liverpool 0.9911 Everton 0.9914 Everton 0.9910 Newcastle 0.9936 Everton 0.9911 Aston Villa 0.9876 Aston Villa 0.9879 Everton 0.9924 Aston Villa 0.9841 Liverpool 0.9750 Tottenham 0.9731 Aston Villa 0.9890 Tottenham 0.9726 Chelsea 0.9732 West Ham 0.9731 Tottenham 0.9741 West Ham 0.9726 West Ham 0.9731 Chelsea 0.9731 West Ham 0.9741 Leeds 0.9659 Tottenham 0.9730 Leeds 0.9648 Liverpool 0.9653 Manchester United 0.9657 Leeds 0.9653 Liverpool 0.9648 Manchester United 0.9651 Chelsea 0.9653 Manchester United 0.9652 Manchester United 0.9646 Arsenal 0.9648 Arsenal 0.9653 Arsenal 0.9648 Arsenal 0.9643 Chelsea 0.9648 Mean 0.9799 – 0.9796 – 0.9786 – 0.9810 Median 0.9784 – 0.9741 – 0.9731 – 0.9815 SD 0.0131 – 0.0126 – 0.0134 – 0.0141 Note: The efficiency scores for the 2001/02 season are not displayed, but are available under request from the authors. 739
740 C. P. Barros and S. Leach The emotional discourse that surrounds the game A policy for overcoming the identified inefficiencies clouds the efficiency drive the industry has adopted. should start with an analysis of the scale of activities How do we explain the different strategies adopted and the adoption of a competitive sporting strategy, by the identified cluster of football clubs? These as the case of Leeds has shown in confirming the different strategies stem from strategic-based groups theoretical results, in which the population of the club and differences in terms of resources. Firstly, base is a main driver in economic performance strategic-based groups (Caves and Porter, 1977) (El-Hodiri and Quirk, 1971; Fort and Quirk, 1995). refer to differences in the structural characteristics of units within an industry, which lead to differences in performance. In football, clubs with similar asset configurations pursue similar strategies with similar VIII. Conclusion results in terms of performance (Porter, 1979). While there are different strategic options among the sectors This article has proposed a simple framework for the of an industry, because of mobility impediments, not evaluation of English Football Premier League Clubs all options are available to each industry, causing and the rationalisation of their operational activities. a spread of the efficiency scores in the industry. The analysis is based on a stochastic frontier model. Secondly, the differences in resources available to Benchmarks are provided for improving the opera- clubs (Wernerfelt, 1984; Barney, 1991; Rumelt, 1991) tions of sub-optimal performing clubs. Several inter- mean that football clubs are heterogeneous in relation esting and useful economic insights and implications to the resources and capabilities on which they base are raised by the study. For the group with the lowest their strategies. These resources and capabilities may efficiency score, adjustment is needed in order to not be perfectly mobile across the industry, resulting reach the efficiency frontier. Too much expenditure in a competitive advantage for the best-performing on factors adds to inefficiency, namely when such football clubs. expenditure is not translated into points. Attendance Purchasable assets cannot represent sources of and turnover increases translate into cost increases, sustainable profits. Indeed, critical resources are not so that managerial procedures to decrease the available on the market. Instead, they are built up contribution of these outputs to costs might be a and accumulated on the football club’s premises, priority for English football managers. The general conclusion is that football clubs have their nonimitability and nonsubstitutability being different efficiency scores. Sporting success is a main dependent on the specific traits of their accumulation driver in cost control, together with scale, confirming process. The difference in resources thus results in the importance of the local fan base. Managerial barriers to imitation (Rumelt, 1991) and in the skills are also important and explain part of the football clubs’ inability to alter their accumulated behaviour observed. The role played by managerial stock of resources over time. In this context, unique skills in sports is linked to sporting and financial assets are seen as exhibiting inherently differentiated performance in the football market. levels of efficiency; sustainable profits are ultimately More investigation is needed to address the a return on the unique assets owned and controlled limitations mentioned. by the club (Teece et al., 1997). 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