IDEAS home Printed from https://ideas.repec.org/a/eee/enepol/v38y2010i7p3710-3716.html
   My bibliography  Save this article

Vertical integration and market power: A model-based analysis of restructuring in the Korean electricity market

Author

Listed:
  • Bunn, Derek W.
  • Martoccia, Maria
  • Ochoa, Patricia
  • Kim, Haein
  • Ahn, Nam-Sung
  • Yoon, Yong-Beom

Abstract

An agent-based simulation model is developed using computational learning to investigate the impact of vertical integration between electricity generators and retailers on market power in a competitive wholesale market setting. It is observed that if partial vertical integration creates some market foreclosure, whether this leads to an increase or decrease in market power is situation specific. A detailed application to the Korean market structure reveals this to be the case. We find that in various cases, whilst vertical integration generally reduces spot prices, it can increase or decrease the market power of other market generators, depending upon the market share and the technology segment of the market, which is integrated, as well as the market concentrations before and after the integration.

Suggested Citation

  • Bunn, Derek W. & Martoccia, Maria & Ochoa, Patricia & Kim, Haein & Ahn, Nam-Sung & Yoon, Yong-Beom, 2010. "Vertical integration and market power: A model-based analysis of restructuring in the Korean electricity market," Energy Policy, Elsevier, vol. 38(7), pages 3710-3716, July.
    • Handle: RePEc:eee:enepol:v:38:y:2010:i:7:p:3710-3716
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0301-4215(10)00153-9
    Download Restriction: Full text for ScienceDirect subscribers only
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Allaz Blaise & Vila Jean-Luc, 1993. "Cournot Competition, Forward Markets and Efficiency," Journal of Economic Theory, Elsevier, vol. 59(1), pages 1-16, February.
    2. James B. Bushnell & Erin T. Mansur & Celeste Saravia, 2008. "Vertical Arrangements, Market Structure, and Competition: An Analysis of Restructured US Electricity Markets," American Economic Review, American Economic Association, vol. 98(1), pages 237-266, March.
    3. Frank Wolak, 2000. "An Empirical Analysis of the Impact of Hedge Contracts on Bidding Behavior in a Competitive Electricity Market," International Economic Journal, Taylor & Francis Journals, vol. 14(2), pages 1-39.
    4. Richard Green, 1999. "The Electricity Contract Market in England and Wales," Journal of Industrial Economics, Wiley Blackwell, vol. 47(1), pages 107-124, March.
    5. Weidlich, Anke & Veit, Daniel, 2008. "A critical survey of agent-based wholesale electricity market models," Energy Economics, Elsevier, vol. 30(4), pages 1728-1759, July.
    6. Bower, John & Bunn, Derek, 2001. "Experimental analysis of the efficiency of uniform-price versus discriminatory auctions in the England and Wales electricity market," Journal of Economic Dynamics and Control, Elsevier, vol. 25(3-4), pages 561-592, March.
    7. Ahn, Nam-sung & Niemeyer, Victor, 2007. "Modeling market power in Korea's emerging power market," Energy Policy, Elsevier, vol. 35(2), pages 899-906, February.
    8. Lee, Byoung-Hoon & Ahn, Hyeon-Hyo, 2006. "Electricity industry restructuring revisited: the case of Korea," Energy Policy, Elsevier, vol. 34(10), pages 1115-1126, July.
    9. Ordover, Janusz A & Saloner, Garth & Salop, Steven C, 1990. "Equilibrium Vertical Foreclosure," American Economic Review, American Economic Association, vol. 80(1), pages 127-142, March.
    10. Blaise Allaz & Jean-Luc Vila, 1993. "Cournot Competition, Forward Markets and Efficiency," Post-Print hal-00511806, HAL.
    11. Michael A. Salinger, 1988. "Vertical Mergers and Market Foreclosure," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 103(2), pages 345-356.
    12. repec:bla:jindec:v:47:y:1999:i:1:p:107-24 is not listed on IDEAS
    13. Bower, John & Bunn, Derek W. & Wattendrup, Claus, 2001. "A model-based analysis of strategic consolidation in the German electricity industry," Energy Policy, Elsevier, vol. 29(12), pages 987-1005, October.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Li, Gong & Shi, Jing & Qu, Xiuli, 2011. "Modeling methods for GenCo bidding strategy optimization in the liberalized electricity spot market–A state-of-the-art review," Energy, Elsevier, vol. 36(8), pages 4686-4700.
    2. Abada, Ibrahim & Briat, Vincent & Massol, Olivier, 2013. "Construction of a fuel demand function portraying interfuel substitution, a system dynamics approach," Energy, Elsevier, vol. 49(C), pages 240-251.
    3. Chinmoy, Lakshmi & Iniyan, S. & Goic, Ranko, 2019. "Modeling wind power investments, policies and social benefits for deregulated electricity market – A review," Applied Energy, Elsevier, vol. 242(C), pages 364-377.
    4. Afshar, Karim & Ghiasvand, Farshad Shamsini & Bigdeli, Nooshin, 2018. "Optimal bidding strategy of wind power producers in pay-as-bid power markets," Renewable Energy, Elsevier, vol. 127(C), pages 575-586.
    5. Romagnoli, Francesco & Barisa, Aiga & Dzene, Ilze & Blumberga, Andra & Blumberga, Dagnija, 2014. "Implementation of different policy strategies promoting the use of wood fuel in the Latvian district heating system: Impact evaluation through a system dynamic model," Energy, Elsevier, vol. 76(C), pages 210-222.
    6. Themistoclis Pantos & Stathis Polyzos & Aggelos Armenatzoglou & Ilias Kampouris, 2019. "Volatility Spillovers in Electricity Markets: Evidence from the United States," International Journal of Energy Economics and Policy, Econjournals, vol. 9(4), pages 131-143.
    7. Khan, Muhammad T. & Thopil, George Alex & Lalk, Jorg, 2016. "Review of proposals for practical power sector restructuring and reforms in a dynamic electricity supply industry," Renewable and Sustainable Energy Reviews, Elsevier, vol. 62(C), pages 326-335.
    8. Bunn, Derek & Yusupov, Tim, 2015. "The progressive inefficiency of replacing renewable obligation certificates with contracts-for-differences in the UK electricity market," Energy Policy, Elsevier, vol. 82(C), pages 298-309.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. de Bragança, Gabriel Godofredo Fiuza & Daglish, Toby, 2017. "Investing in vertical integration: electricity retail market participation," Energy Economics, Elsevier, vol. 67(C), pages 355-365.
    2. Simshauser, Paul & Tian, Yuan & Whish-Wilson, Patrick, 2015. "Vertical integration in energy-only electricity markets," Economic Analysis and Policy, Elsevier, vol. 48(C), pages 35-56.
    3. Baldursson , Fridrik M. & von der Fehr, Nils-Henrik, 2007. "Vertical Integration and Long-Term Contracts in Risky Markets," Memorandum 01/2007, Oslo University, Department of Economics.
    4. Gilbert, Richard J & Newberry, David M, 2006. "Electricity Merger Policy in the Shadow of Regulation," Department of Economics, Working Paper Series qt7bh5f7rn, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
    5. Simshauser, P., 2020. "Merchant utilities and boundaries of the firm: vertical integration in energy-only markets," Cambridge Working Papers in Economics 2039, Faculty of Economics, University of Cambridge.
    6. Dressler, Luisa, 2016. "Support schemes for renewable electricity in the European Union: Producer strategies and competition," Energy Economics, Elsevier, vol. 60(C), pages 186-196.
    7. Brown, David P. & Eckert, Andrew & Shaffer, Blake, 2023. "Evaluating the impact of divestitures on competition: Evidence from Alberta’s wholesale electricity market," International Journal of Industrial Organization, Elsevier, vol. 89(C).
    8. Ritz, Robert A., 2016. "How does renewables competition affect forward contracting in electricity markets?," Economics Letters, Elsevier, vol. 146(C), pages 135-139.
    9. Jordi Brandts & Paul Pezanis‐Christou & Arthur Schram, 2008. "Competition with forward contracts: a laboratory analysis motivated by electricity market design," Economic Journal, Royal Economic Society, vol. 118(525), pages 192-214, January.
    10. Holmberg, Pär & Newbery, David, 2010. "The supply function equilibrium and its policy implications for wholesale electricity auctions," Utilities Policy, Elsevier, vol. 18(4), pages 209-226, December.
    11. Holmberg, Pär & Willems, Bert, 2015. "Relaxing competition through speculation: Committing to a negative supply slope," Journal of Economic Theory, Elsevier, vol. 159(PA), pages 236-266.
    12. de Frutos, María-Ángeles & Fabra, Natalia, 2012. "How to allocate forward contracts: The case of electricity markets," European Economic Review, Elsevier, vol. 56(3), pages 451-469.
    13. Holmberg, Pär & Tangerås, Thomas & Ahlqvist, Victor, 2018. "Central- versus Self-Dispatch in Electricity Markets," Working Paper Series 1257, Research Institute of Industrial Economics, revised 27 Mar 2019.
    14. Van Moer, Geert, 2019. "Electricity market competition when forward contracts are pairwise efficient," MPRA Paper 96660, University Library of Munich, Germany.
    15. David P. Brown & David E. M. Sappington, 2023. "Load-Following Forward Contracts," The Energy Journal, , vol. 44(3), pages 187-222, May.
    16. Meredith Fowlie, 2008. "Incomplete Environmental Regulation, Imperfect Competition, and Emissions Leakage," NBER Working Papers 14421, National Bureau of Economic Research, Inc.
    17. Desmond Cai & Anish Agarwal & Adam Wierman, 2020. "On the Inefficiency of Forward Markets in Leader–Follower Competition," Operations Research, INFORMS, vol. 68(1), pages 35-52, January.
    18. Kenneth Hendricks & R. Preston Mcafee, 2010. "A Theory Of Bilateral Oligopoly," Economic Inquiry, Western Economic Association International, vol. 48(2), pages 391-414, April.
    19. Argenton, Cédric & Willems, Bert, 2015. "Exclusion through speculation," International Journal of Industrial Organization, Elsevier, vol. 39(C), pages 1-9.
    20. Paul Joskow & Jean Tirole, 2007. "Reliability and competitive electricity markets," RAND Journal of Economics, RAND Corporation, vol. 38(1), pages 60-84, March.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:enepol:v:38:y:2010:i:7:p:3710-3716. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.elsevier.com/locate/enpol .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.