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Excess Returns in Electric Utility Mergers during Transition to Competition


  • Berry, S Keith


A standard event methodology is used to evaluate recent electric utility mergers as the industry moves to competitive generation markets. Statistically significant effects were focused on the day before the announcement and the day of the announcement, and were fairly small, although statistically significant. Shareholders perceive very little merger benefits occurring in a highly competitive generation sector. Markets reacted more positively to the gas/electric mergers, indicating stockholder appreciation for opportunities for scope economies. U.S. acquirers suffered no significant wealth losses in mergers with British and Australian utilities. Copyright 2000 by Kluwer Academic Publishers

Suggested Citation

  • Berry, S Keith, 2000. "Excess Returns in Electric Utility Mergers during Transition to Competition," Journal of Regulatory Economics, Springer, vol. 18(2), pages 175-188, September.
  • Handle: RePEc:kap:regeco:v:18:y:2000:i:2:p:175-88

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    1. repec:eee:enepol:v:107:y:2017:i:c:p:258-277 is not listed on IDEAS
    2. Meinshausen, Steffen & Schiereck, Dirk, 2011. "Dressed to merge — small fits fine: M&A success in the fashion and accessories industry," International Review of Financial Analysis, Elsevier, vol. 20(5), pages 283-291.
    3. Calzolari, Giacomo & Scarpa, Carlo, 2007. "Regulating a Multi-Utility Firm," CEPR Discussion Papers 6238, C.E.P.R. Discussion Papers.
    4. Kwoka, John & Pollitt, Michael, 2010. "Do mergers improve efficiency? Evidence from restructuring the US electric power sector," International Journal of Industrial Organization, Elsevier, vol. 28(6), pages 645-656, November.
    5. Carlo Scarpa & Giacomo Calzolari, 2009. "On Regulation and Competition: Pros and Cons of a Diversified Monopolist," Working Papers 2009.55, Fondazione Eni Enrico Mattei.
    6. Giacomo Calzolari & Carlo Scarpa, 2016. "Conglomerates And Regulation," Economic Inquiry, Western Economic Association International, vol. 54(3), pages 1648-1669, July.
    7. Nogata, Daisuke & Uchida, Konari & Goto, Naohisa, 2011. "Is corporate governance important for regulated firms' shareholders?: Evidence from Japanese mergers and acquisitions," Journal of Economics and Business, Elsevier, vol. 63(1), pages 46-68, January.
    8. Nogata, Daisuke & Uchida, Konari & Goto, Naohisa, 2011. "Is corporate governance important for regulated firms’ shareholders?," Journal of Economics and Business, Elsevier, vol. 63(1), pages 46-68.

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