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Cost Inefficiency in the English and Welsh Water Industry: An Heteroskedastic Stochastic Cost Frontier Approach

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  • Bottasso, Anna
  • Conti, Maurizio

Abstract

In this study we analyze the evolution of operating cost inefficiency for the English and Welsh water industry over the period 1995-2001 by estimating an heteroskedastic stochastic variable cost frontier. The main aim of this paper is to provide an overall picture of the industry cost inefficiency, as we consider both the water and sewerage companies and the smaller water only companies. The main results of this paper are that industry operating cost inefficiency has decreased over the sample period and that inefficiency differentials among firms have steadily narrowed. This pattern of inefficiency might have been generated by the incentives provided by comparative and capital market competition which became fully operative after the 1994 price review.

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  • Bottasso, Anna & Conti, Maurizio, 2003. "Cost Inefficiency in the English and Welsh Water Industry: An Heteroskedastic Stochastic Cost Frontier Approach," Economics Discussion Papers 8872, University of Essex, Department of Economics.
    • Handle: RePEc:esx:essedp:8872
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    1. Lazear, Edward P & Rosen, Sherwin, 1981. "Rank-Order Tournaments as Optimum Labor Contracts," Journal of Political Economy, University of Chicago Press, vol. 89(5), pages 841-864, October.
    2. Schankerman, Mark & Nadiri, M. Ishaq, 1986. "A test of static equilibrium models and rates of return to quasi-fixed factors, with an application to the Bell system," Journal of Econometrics, Elsevier, vol. 33(1-2), pages 97-118.
    3. Tangeras, Thomas P., 2002. "Collusion-proof yardstick competition," Journal of Public Economics, Elsevier, vol. 83(2), pages 231-254, February.
    4. David E. M. Sappington & Joseph E. Stiglitz, 1987. "Privatization, information and incentives," Journal of Policy Analysis and Management, John Wiley & Sons, Ltd., vol. 6(4), pages 567-585.
    5. Caudill, Steven B. & Ford, Jon M., 1993. "Biases in frontier estimation due to heteroscedasticity," Economics Letters, Elsevier, vol. 41(1), pages 17-20.
    6. Emmanuelle Auriol, 2000. "Concurrence par comparaison. Un point de vue normatif," Revue Économique, Programme National Persée, vol. 51(3), pages 621-634.
    7. Hadri, Kaddour, 1999. "Estimation of a Doubly Heteroscedastic Stochastic Frontier Cost Function," Journal of Business & Economic Statistics, American Statistical Association, vol. 17(3), pages 359-363, July.
    8. Reifschneider, David & Stevenson, Rodney, 1991. "Systematic Departures from the Frontier: A Framework for the Analysis of Firm Inefficiency," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 32(3), pages 715-723, August.
    9. Bauer, Paul W. & Berger, Allen N. & Ferrier, Gary D. & Humphrey, David B., 1998. "Consistency Conditions for Regulatory Analysis of Financial Institutions: A Comparison of Frontier Efficiency Methods," Journal of Economics and Business, Elsevier, vol. 50(2), pages 85-114, March.
    10. Laffont, Jean-Jacques & Tirole, Jean, 1991. "Privatization and Incentives," The Journal of Law, Economics, and Organization, Oxford University Press, vol. 7(0), pages 84-105, Special I.
    11. Cowan, Simon, 1997. "Competition in the Water Industry," Oxford Review of Economic Policy, Oxford University Press and Oxford Review of Economic Policy Limited, vol. 13(1), pages 83-92, Spring.
    12. Jondrow, James & Knox Lovell, C. A. & Materov, Ivan S. & Schmidt, Peter, 1982. "On the estimation of technical inefficiency in the stochastic frontier production function model," Journal of Econometrics, Elsevier, vol. 19(2-3), pages 233-238, August.
    13. Serge Garcia & Alban Thomas, 2001. "The Structure of Municipal Water Supply Costs: Application to a Panel of French Local Communities," Journal of Productivity Analysis, Springer, vol. 16(1), pages 5-29, July.
    14. Mark Armstrong & Simon Cowan & John Vickers, 1994. "Regulatory Reform: Economic Analysis and British Experience," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262510790, December.
    15. Bengt Holmstrom, 1982. "Moral Hazard in Teams," Bell Journal of Economics, The RAND Corporation, vol. 13(2), pages 324-340, Autumn.
    16. John W. Sawkins, 2001. "The development of competition in the English and Welsh water and sewerage industry ," Fiscal Studies, Institute for Fiscal Studies, vol. 22(2), pages 189-215, June.
    17. Andrei Shleifer, 1985. "A Theory of Yardstick Competition," RAND Journal of Economics, The RAND Corporation, vol. 16(3), pages 319-327, Autumn.
    18. De Fraja, Giovanni, 1993. "Productive efficiency in public and private firms," Journal of Public Economics, Elsevier, vol. 50(1), pages 15-30, January.
    19. John K. Ashton, 2000. "Total Factor Productivity Growth and Technical Change in the Water and Sewerage Industry," The Service Industries Journal, Taylor & Francis Journals, vol. 20(4), pages 121-130, October.
    20. Caves, Douglas W & Christensen, Laurits R & Swanson, Joseph A, 1981. "Productivity Growth, Scale Economies, and Capacity Utilization in U.S. Railroads, 1955-74," American Economic Review, American Economic Association, vol. 71(5), pages 994-1002, December.
    21. John Vickers & George Yarrow, 1988. "Privatization: An Economic Analysis," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262720116, December.
    22. Paola Fabbri & Giovanni Fraquelli, 2000. "Costs and Structure of Technology in the Italian Water Industry," Empirica, Springer;Austrian Institute for Economic Research;Austrian Economic Association, vol. 27(1), pages 65-82, March.
    23. Barry J. Nalebuff & Joseph E. Stiglitz, 1983. "Prices and Incentives: Towards a General Theory of Compensation and Competition," Bell Journal of Economics, The RAND Corporation, vol. 14(1), pages 21-43, Spring.
    24. Battese, G E & Coelli, T J, 1995. "A Model for Technical Inefficiency Effects in a Stochastic Frontier Production Function for Panel Data," Empirical Economics, Springer, vol. 20(2), pages 325-332.
    25. Hunt, Lester C & Lynk, Edward L, 1995. "Privatisation and Efficiency in the UK Water Industry: An Empirical Analysis," Oxford Bulletin of Economics and Statistics, Department of Economics, University of Oxford, vol. 57(3), pages 371-388, August.
    26. Aigner, Dennis & Lovell, C. A. Knox & Schmidt, Peter, 1977. "Formulation and estimation of stochastic frontier production function models," Journal of Econometrics, Elsevier, vol. 6(1), pages 21-37, July.
    27. Cubbin, John & Tzanidakis, George, 1998. "Regression versus data envelopment analysis for efficiency measurement: an application to the England and Wales regulated water industry," Utilities Policy, Elsevier, vol. 7(2), pages 75-85, June.
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    3. Danelon, André F. & Spolador, Humberto F.S. & Kumbhakar, Subal C., 2021. "Weather and population size effects on water and sewer treatment costs: Evidence from Brazil," Journal of Development Economics, Elsevier, vol. 153(C).
    4. Pointon, Charlotte & Matthews, Kent, 2016. "Dynamic efficiency in the English and Welsh water and sewerage industry," Omega, Elsevier, vol. 58(C), pages 86-96.
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    6. Barbosa, Alexandro & Lima, Severino Cesário de & Brusca, Isabel, 2016. "Governance and efficiency in the Brazilian water utilities: A dynamic analysis in the process of universal access," Utilities Policy, Elsevier, vol. 43(PA), pages 82-96.
    7. José Luis Bonifaz & Reyk Itakura, 2014. "An analysis of inefficiency of big urban water utilities in Latin-America," Working Papers 14-13, Centro de Investigación, Universidad del Pacífico.
    8. Linz, Teresa & Tsegai, Daniel W., 2009. "Industrial Water Demand analysis in the Middle Olifants sub-basin of South Africa: The case of Mining," Discussion Papers 49927, University of Bonn, Center for Development Research (ZEF).
    9. Ben Amor, Tawfik & Mellah, Thuraya, 2023. "Cost efficiency of Tunisian water utility districts: Does heterogeneity matter?," Utilities Policy, Elsevier, vol. 84(C).
    10. Molinos-Senante, María & Maziotis, Alexandros & Sala-Garrido, Ramón, 2014. "The Luenberger productivity indicator in the water industry: An empirical analysis for England and Wales," Utilities Policy, Elsevier, vol. 30(C), pages 18-28.
    11. Ferro, Gustavo & Romero, Carlos A. & Covelli, María Paula, 2011. "Regulation and performance: A production frontier estimate for the Latin American water and sanitation sector," Utilities Policy, Elsevier, vol. 19(4), pages 211-217.
    12. Simon Porcher & Alexandros Maziotis & Maria Molinos-Senante, 2017. "The welfare costs of non-marginal water pricing: evidence from the water only companies in England and Wales," Post-Print hal-02145826, HAL.
    13. Arlette Beltrán B. & Pablo Lavado, 2014. "El impacto del uso del tiempo de las mujeres en el Perú: un recurso escaso y poco valorado en la economía nacional," Working Papers 14-09, Centro de Investigación, Universidad del Pacífico.
    14. Ferro, Gustavo & Lentini, Emilio & Mercadier, Augusto & Romero, Carlos A., 2010. "Retornos a escala en agua y saneamiento: estimaciones para América Latina [Returns to scale in water and sanitation: estimates for Latin Amercia]," MPRA Paper 20324, University Library of Munich, Germany, revised Jan 2010.
    15. Byrnes, Joel & Crase, Lin & Dollery, Brian & Villano, Renato, 2010. "The relative economic efficiency of urban water utilities in regional New South Wales and Victoria," Resource and Energy Economics, Elsevier, vol. 32(3), pages 439-455, August.
    16. Walter, Matthias & Cullmann, Astrid & von Hirschhausen, Christian & Wand, Robert & Zschille, Michael, 2009. "Quo vadis efficiency analysis of water distribution? A comparative literature review," Utilities Policy, Elsevier, vol. 17(3-4), pages 225-232, September.
    17. Jinjin Zhao, 2020. "Productivity change in the privatized water sector in China (1999–2006)," Journal of Productivity Analysis, Springer, vol. 53(2), pages 227-241, April.
    18. M C A S Portela & E Thanassoulis & A Horncastle & T Maugg, 2011. "Productivity change in the water industry in England and Wales: application of the meta-Malmquist index," Journal of the Operational Research Society, Palgrave Macmillan;The OR Society, vol. 62(12), pages 2173-2188, December.
    19. Cuadrado-Ballesteros, Beatriz & García-Sánchez, Isabel-María & Prado-Lorenzo, José-Manuel, 2013. "Effect of modes of public services delivery on the efficiency of local governments: A two-stage approach," Utilities Policy, Elsevier, vol. 26(C), pages 23-35.
    20. Pointon, Charlotte & Matthews, Kent, 2016. "Reprint of: Dynamic efficiency in the English and Welsh water and sewerage industry," Omega, Elsevier, vol. 60(C), pages 98-108.
    21. Molinos-Senante, María & Maziotis, Alexandros & Sala-Garrido, Ramón, 2020. "Changes in the total costs of the English and Welsh water and sewerage industry: The decomposed effect of price and quantity inputs on efficiency," Utilities Policy, Elsevier, vol. 66(C).
    22. Anne-Kathrin Faust & Andrea Baranzini, 2014. "The economic performance of Swiss drinking water utilities," Journal of Productivity Analysis, Springer, vol. 41(3), pages 383-397, June.
    23. Abbott, Malcolm & Cohen, Bruce, 2009. "Productivity and efficiency in the water industry," Utilities Policy, Elsevier, vol. 17(3-4), pages 233-244, September.
    24. Alexandr Akimov & Paul Simshauser, 2018. "Performance measurement in Australian water utilities: Current state and future directions," Discussion Papers in Finance finance:201802, Griffith University, Department of Accounting, Finance and Economics.
    25. Mellah, Thuraya & Ben Amor, Tawfik, 2016. "Performance of the Tunisian Water Utility: An input-distance function approach," Utilities Policy, Elsevier, vol. 38(C), pages 18-32.

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