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Transmission-constrained oligopoly in the Japanese electricity market

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  • Tanaka, Makoto

Abstract

We simulate the Japanese wholesale electricity market as a transmission-constrained Cournot market using a linear complementarity approach. First, we investigate the effects of upgrading the bottleneck transmission line between the eastern and western regions, focusing on the mitigation of transmission congestion. Although increasing the bottleneck capacity would lead to welfare gains, they might not be substantial particularly when transmission capacity costs are taken into account. Second, we examine the effects of splitting the largest electric power company, which is located in the eastern region, focusing on the mitigation of market power. Splitting the largest company into two companies would lead to a 25% reduction in the eastern price, and a 50% reduction in deadweight loss. The divestiture of the largest company would have a significant effect of mitigating market power in the Japanese electricity market.

Suggested Citation

  • Tanaka, Makoto, 2009. "Transmission-constrained oligopoly in the Japanese electricity market," Energy Economics, Elsevier, vol. 31(5), pages 690-701, September.
    • Handle: RePEc:eee:eneeco:v:31:y:2009:i:5:p:690-701
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    1. TANAKA Makoto, 2006. "A Simulation Analysis of Transmission - Constrained Oligopoly in the Wholesale Electricity Market (Japanese)," Discussion Papers (Japanese) 06010, Research Institute of Economy, Trade and Industry (RIETI).
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    1. Weigt, H. & Willems, Bert, 2011. "The Effect of Divestitures in the German Electricity Market," Other publications TiSEM 7bbea5b0-7489-416f-8767-d, Tilburg University, School of Economics and Management.
    2. Nobuhiro Hosoe & Makoto Tanaka, 2012. "How Much is TEPCO Worth?–Estimating the Fundamental Value of its Thermal Plants," GRIPS Discussion Papers 12-02, National Graduate Institute for Policy Studies.
    3. Ciarreta, Aitor & Nasirov, Shahriyar & Silva, Carlos, 2016. "The development of market power in the Spanish power generation sector: Perspectives after market liberalization," Energy Policy, Elsevier, vol. 96(C), pages 700-710.
    4. Alexander Zerrahn & Daniel Huppmann, 2014. "Network Expansion to Mitigate Market Power: How Increased Integration Fosters Welfare," Discussion Papers of DIW Berlin 1380, DIW Berlin, German Institute for Economic Research.
    5. Kamiński, Jacek, 2012. "The development of market power in the Polish power generation sector: A 10-year perspective," Energy Policy, Elsevier, vol. 42(C), pages 136-147.
    6. Nakajima, Tadahiro, 2013. "Inefficient and opaque price formation in the Japan Electric Power Exchange," Energy Policy, Elsevier, vol. 55(C), pages 329-334.
    7. Spiridonova, Olga, 2016. "Transmission capacities and competition in Western European electricity market," Energy Policy, Elsevier, vol. 96(C), pages 260-273.
    8. Dzikri Firmansyah Hakam, 2018. "Market Power Modelling in Electricity Market: A Critical Review," International Journal of Energy Economics and Policy, Econjournals, vol. 8(5), pages 347-356.
    9. TANAKA Makoto, 2007. "Oligopolistic Competition in the Japanese Wholesale Electricity Market: A Linear Complementarity Approach," Discussion papers 07023, Research Institute of Economy, Trade and Industry (RIETI).
    10. Farzad Hassanzadeh Moghimi & Yihsu Chen & Afzal S. Siddiqui, 2023. "Flexible supply meets flexible demand: prosumer impact on strategic hydro operations," Computational Management Science, Springer, vol. 20(1), pages 1-35, December.
    11. Alexander Zerrahn & Daniel Huppmann, 2017. "Network Expansion to Mitigate Market Power," Networks and Spatial Economics, Springer, vol. 17(2), pages 611-644, June.
    12. Bremberger, Francisca & Gasser, Stephan M. & Kremser, Thomas R. & Rammerstorfer, Margarethe, 2014. "The Impact of EU ETS Price Variations on Germany’s Electricity Production Mix," Die Unternehmung - Swiss Journal of Business Research and Practice, Nomos Verlagsgesellschaft mbH & Co. KG, vol. 68(3), pages 164-180.
    13. de Nooij, Michiel, 2011. "Social cost-benefit analysis of electricity interconnector investment: A critical appraisal," Energy Policy, Elsevier, vol. 39(6), pages 3096-3105, June.
    14. Kamiński, Jacek, 2014. "A blocked takeover in the Polish power sector: A model-based analysis," Energy Policy, Elsevier, vol. 66(C), pages 42-52.
    15. Rossana Riccardi & Giorgia Oggioni & Elisabetta Allevi & Abdel Lisser, 2023. "Complementarity formulation of games with random payoffs," Computational Management Science, Springer, vol. 20(1), pages 1-32, December.
    16. Kamiński, Jacek, 2011. "Market power in a coal-based power generation sector: The case of Poland," Energy, Elsevier, vol. 36(11), pages 6634-6644.
    17. Michiel de Nooij, 2010. "Social Cost Benefit Analysis of Interconnector Investment: A Critical Appraisal," Bremen Energy Working Papers 0002, Bremen Energy Research.
    18. Hosoe, Nobuhiro & Tanaka, Makoto, 2012. "Divestiture of TEPCO for reparation for the Fukushima nuclear accident–A path to vertical unbundling," Energy Policy, Elsevier, vol. 51(C), pages 207-212.

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