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

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  • Anna Bottasso

    ()

  • Maurizio Conti

    ()

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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Bibliographic Info

Paper provided by University of Essex, Department of Economics in its series Economics Discussion Papers with number 573.

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Date of creation: 08 Dec 2003
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Handle: RePEc:esx:essedp:573

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  1. 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.
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  16. 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.
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Cited by:
  1. 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.
  2. Abbott, Malcolm & Cohen, Bruce, 2009. "Productivity and efficiency in the water industry," Utilities Policy, Elsevier, vol. 17(3-4), pages 233-244, September.
  3. Sabbioni, Guillermo, 2008. "Efficiency in the Brazilian sanitation sector," Utilities Policy, Elsevier, vol. 16(1), pages 11-20, March.
  4. 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).
  5. 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.
  6. 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.
  7. 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.
  8. Graziano Abrate & Fabrizio Erbetta & Giovanni Fraquelli, 2011. "Public utility planning and cost efficiency in a decentralized regulation context: the case of the Italian integrated water service," Journal of Productivity Analysis, Springer, vol. 35(3), pages 227-242, June.

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