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Detecting collusion in retail electricity markets: Results from Japan for 2005 to 2010

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  • Matsukawa, Isamu

Abstract

This analysis investigates whether the Cournot model of imperfect competition holds true in the Japanese retail electricity market, using monthly data over the period 2005 to 2010. One concern about electricity markets that are open to retail competition is the potential for collusive behavior of some suppliers. A revealed preference test of the Cournot model is conducted, using market price and firm output data, as in Carvajal et al. (2013). The application of the revealed preference test to the retail electricity market in Japan indicates that the possibility of collusive behavior among the incumbents cannot be excluded.

Suggested Citation

  • Matsukawa, Isamu, 2019. "Detecting collusion in retail electricity markets: Results from Japan for 2005 to 2010," Utilities Policy, Elsevier, vol. 57(C), pages 16-23.
    • Handle: RePEc:eee:juipol:v:57:y:2019:i:c:p:16-23
    DOI: 10.1016/j.jup.2018.12.005
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    Cited by:

    1. Brown, David P. & Eckert, Andrew & Silveira, Douglas, 2023. "Screening for Collusion in Wholesale Electricity Markets: A Review of the Literature," Working Papers 2023-7, University of Alberta, Department of Economics.
    2. Peng Hao & Jun-Peng Guo & Eoghan O’Neill & Yong-Heng Shi, 2023. "When Will First-Price Work Well? The Impact of Anti-Corruption Rules on Photovoltaic Power Generation Procurement Auctions," Sustainability, MDPI, vol. 15(4), pages 1-24, February.
    3. Amenta, Carlo & Aronica, Martina & Stagnaro, Carlo, 2022. "Is more competition better? Retail electricity prices and switching rates in the European Union," Utilities Policy, Elsevier, vol. 78(C).
    4. Brown, David P. & Eckert, Andrew & Silveira, Douglas, 2023. "Screening for collusion in wholesale electricity markets: A literature review," Utilities Policy, Elsevier, vol. 85(C).

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    More about this item

    Keywords

    Nonparametric test; Cournot model; Retail electricity market; Collusion; D43; L13; L94;
    All these keywords.

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities

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