Cost Inefficiency in the English and Welsh Water Industry: An Heteroskedastic Stochastic Cost Frontier Approach
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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- Caudill, Steven B. & Ford, Jon M., 1993. "Biases in frontier estimation due to heteroscedasticity," Economics Letters, Elsevier, vol. 41(1), pages 17-20.
- Paul W. Bauer & Allen N. Berger & Gary D. Ferrier & David B. Humphrey, 1997.
"Consistency conditions for regulatory analysis of financial institutions: a comparison of frontier efficiency methods,"
Finance and Economics Discussion Series
1997-50, Board of Governors of the Federal Reserve System (U.S.).
- 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.
- Paul W. Bauer & Allen N. Berger & Gary D. Ferrier & David B. Humphrey, 1997. "Consistency conditions for regulatory analysis of financial institutions: a comparison of frontier efficiency methods," Financial Services working paper 97-02, Federal Reserve Bank of Cleveland.
- Caudill, Steven B & Ford, Jon M & Gropper, Daniel M, 1995. "Frontier Estimation and Firm-Specific Inefficiency Measures in the Presence of Heteroscedasticity," Journal of Business & Economic Statistics, American Statistical Association, vol. 13(1), pages 105-11, January.
- David S Saal & David Parker, 2000. "The impact of privatization and regulation on the water and sewerage industry in England and Wales: a translog cost function model," Managerial and Decision Economics, John Wiley & Sons, Ltd., vol. 21(6), pages 253-268.
- Saal, David S & Parker, David, 2001. "Productivity and Price Performance in the Privatized Water and Sewerage Companies of England and Wales," Journal of Regulatory Economics, Springer, vol. 20(1), pages 61-90, July.
- 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.
- Hadri, Kaddour, 1999. "Estimation of a Doubly Heteroscedastic Stochastic Frontier Cost Function," Journal of Business & Economic Statistics, American Statistical Association, vol. 17(3), pages 359-63, July.
- Emmanuelle Auriol, 2000. "Concurrence par comparaison. Un point de vue normatif," Revue Économique, Programme National Persée, vol. 51(3), pages 621-634.
- Tangerås, Thomas P., 1999.
"Collusion-Proof Yardstick Competition,"
674, Stockholm University, Institute for International Economic Studies.
- Laffont, Jean-Jacques & Tirole, Jean, 1991.
"Privatization and Incentives,"
Journal of Law, Economics and Organization,
Oxford University Press, vol. 7(0), pages 84-105, Special I.
- 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.
- 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.
- Cowan, Simon, 1997. "Competition in the Water Industry," Oxford Review of Economic Policy, Oxford University Press, vol. 13(1), pages 83-92, Spring.
- 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.
- 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.
- 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 371-88, August.
- 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.
- 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.
- Paola Fabbri & Giovanni Fraquelli, 2000. "Costs and Structure of Technology in the Italian Water Industry," Empirica, Springer, vol. 27(1), pages 65-82, March.
- 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, June.
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