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Industry Restructuring, Mergers, And Efficiency: Evidence From Electric Power

Author

Listed:
  • Kwoka, J.
  • Pollitt, M.

Abstract

This paper analyses the performance impact of the merger wave which took place in the US electricity industry during the period 1994-2003. It does so by analyzing the impact on operating and total cost in electricity distribution. While there are past studies of efficiency and productivity effects, as well as of prices, profits, and other outcomes, this study differs in several ways. First, the database consists of many merging and non-merging firms, rather than only a few on which to base inferences. Second, all of these mergers arise in a single industry, greatly facilitating controlled comparison. Third, we have data on the several years of pre-merger and post-merger efficiency of the specific merging units, unlike virtually all past studies. And finally, we employ a powerful nonparametric technique - data envelopment analysis - to measure the efficiency of each operating unit. The results indicate that electricity mergers are not consistent with improved cost performance.

Suggested Citation

  • Kwoka, J. & Pollitt, M., 2007. "Industry Restructuring, Mergers, And Efficiency: Evidence From Electric Power," Cambridge Working Papers in Economics 0725, Faculty of Economics, University of Cambridge.
  • Handle: RePEc:cam:camdae:0725
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    File URL: http://www.electricitypolicy.org.uk/pubs/wp/eprg0708.pdf
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    References listed on IDEAS

    as
    1. Markiewicz, K. & Rose, N.L. & Wolfram, C., 2004. "Does Competition Reduce Costs? Assessing the Impact of Regulatory Restructuring on U.S. Electric Generation Efficiency," Cambridge Working Papers in Economics 0472, Faculty of Economics, University of Cambridge.
    2. repec:reg:rpubli:207 is not listed on IDEAS
    3. Paul L. Joskow, 2003. "The Difficult Transition to Competitive Electricity Markets in the U.S," Working Papers 0308, Massachusetts Institute of Technology, Center for Energy and Environmental Policy Research.
    4. Jamasb, T. & Pollitt, M., 2000. "Benchmarking and regulation: international electricity experience," Utilities Policy, Elsevier, vol. 9(3), pages 107-130, September.
    Full references (including those not matched with items on IDEAS)

    Citations

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    Cited by:

    1. Kristof De Witte & Elbert Dijkgraaf, 2007. "Mean and Bold?," Tinbergen Institute Discussion Papers 07-092/3, Tinbergen Institute.
    2. Francesc Trillas, 2008. "Regulatory federalism in network industries," Working Papers 2008/8, Institut d'Economia de Barcelona (IEB).
    3. Pollitt, Michael, 2008. "The arguments for and against ownership unbundling of energy transmission networks," Energy Policy, Elsevier, vol. 36(2), pages 704-713, February.
    4. Gaunt, C.T., 2008. "Electricity distribution industry restructuring in South Africa: A case study," Energy Policy, Elsevier, vol. 36(9), pages 3448-3459, September.

    More about this item

    Keywords

    mergers; efficiency analysis; electricity distribution; data envelopment analysis.;

    JEL classification:

    • L25 - Industrial Organization - - Firm Objectives, Organization, and Behavior - - - Firm Performance
    • L43 - Industrial Organization - - Antitrust Issues and Policies - - - Legal Monopolies and Regulation or Deregulation
    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities

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