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Bilateral Market Power And Vertical Integration In The Spanish Electricity Spot Market

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Author Info
Kai-Uwe Kühn ()
Matilde Machado () (CEMFI, Centro de Estudios Monetarios y Financieros)

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Abstract

The Spanish electricity spot market is highly concentrated both on the seller and the buyer side. Furthermore, unlike electricity spot markets in other deregulated electricity systems, large buyers and sellers are typically vertically integrated. This allows both large net sellers and large net buyers to strategically influence the spot market price. We develop a supply function model of this market to analyze the impact of market power on prices and productive efficiency and use it empiricially to detect such bilateral market power. Our estimates suggest that market power has had little impact on spot market prices but that substantial productive inefficiencies may have arisen from the excercise of bilateral market power.

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Publisher Info
Paper provided by CEMFI in its series Working Papers with number wp2004_0414.

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Date of creation: Sep 2004
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Handle: RePEc:cmf:wpaper:wp2004_0414

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Related research
Keywords: Market power test vertical integration electricity markets supply function equilibrium.

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Find related papers by JEL classification:
L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices
L43 - Industrial Organization - - Antitrust Issues and Policies - - - Legal Monopolies and Regulation or Deregulation

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Frank A. Wolak, 2000. "An Empirical Analysis Of The Impact Of Hedge Contracts On Bidding Behavior In A Competitive Electricity Market ," International Economic Journal, Korean International Economic Association, vol. 14(2), pages 1-39, June. [Downloadable!] (restricted)
  2. Gal-Or, Esther, 1986. "Information Transmission-Cournot and Bertrand Equilibria," Review of Economic Studies, Blackwell Publishing, vol. 53(1), pages 85-92, January. [Downloadable!] (restricted)
  3. Catherine D. Wolfram, 1998. "Strategic Bidding in a Multiunit Auction: An Empirical Analysis of Bids to Supply Electricity in England and Wales," RAND Journal of Economics, The RAND Corporation, vol. 29(4), pages 703-725, Winter. [Downloadable!] (restricted)
  4. von der Fehr, Nils-Henrik Morch & Harbord, David, 1993. "Spot Market Competition in the UK Electricity Industry," Economic Journal, Royal Economic Society, vol. 103(418), pages 531-46, May. [Downloadable!] (restricted)
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  5. Erin T. Mansur, 2003. "Vertical Integration in Restructured Electricity Markets: Measuring Market Efficiency and Firm Conduct," Yale School of Management Working Papers ysm430, Yale School of Management. [Downloadable!]
  6. Klemperer, Paul D & Meyer, Margaret A, 1989. "Supply Function Equilibria in Oligopoly under Uncertainty," Econometrica, Econometric Society, vol. 57(6), pages 1243-77, November. [Downloadable!] (restricted)
  7. Green, Richard J, 1996. "Increasing Competition in the British Electricity Spot Market," Journal of Industrial Economics, Blackwell Publishing, vol. 44(2), pages 205-16, June. [Downloadable!] (restricted)
  8. Arocena, Pablo & Kuhn, Kai-Uwe- & Regibeau, Pierre, 1999. "Regulatory reform in the Spanish electricity industry: a missed opportunity for competition," Energy Policy, Elsevier, vol. 27(7), pages 387-399, July. [Downloadable!] (restricted)
  9. Green, Richard J & Newbery, David M, 1992. "Competition in the British Electricity Spot Market," Journal of Political Economy, University of Chicago Press, vol. 100(5), pages 929-53, October. [Downloadable!] (restricted)
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(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Abel Elizalde & Rafael Repullo, 2004. "Economic And Regulatory Capital. What Is The Difference?," Working Papers wp2004_0422, CEMFI. [Downloadable!]
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  2. Jose Ceron & Javier Suarez, 2006. "Hot And Cold Housing Markets: International Evidence," Working Papers wp2006_0603, CEMFI. [Downloadable!]
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  3. Augusto Rupérez Micola & Albert Banal Estañol & Derek W. Bunn, 2006. "Incentives and Coordination in Vertically Related Energy Markets," CIG Working Papers SP II 2006-02, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG). [Downloadable!]
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  4. Anette Boom, 2007. "Vertically Integrated Firms' Investments in Electricity Generating Capacities," CIE Discussion Papers 2007-14, University of Copenhagen. Department of Economics. Centre for Industrial Economics. [Downloadable!]
  5. Mª Dolores Furió Ortega & Julio Lucia López, . "Congestion management rules and trading strategies," Studies on the Spanish Economy 222, FEDEA. [Downloadable!]
  6. Aleix Calveras & Juan-José Ganuza & Gerard Llobet, 2005. "Regulation And Opportunism: How Much Activism Do We Need?," Working Papers wp2005_0508, CEMFI. [Downloadable!]
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  7. Javier Díaz-Giménez & Josep Pijoan-Mas, 2006. "Flat Tax Reforms In The U.S.: A Boon For The Income Poor," Working Papers wp2006_0611, CEMFI. [Downloadable!]
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  8. Beatriz Dominguez & Juan-José Ganuza & Gerard Llobet, 2006. "R&D In The Pharmaceutical Industry: A World Of Small Innovation," Working Papers wp2006_0601, CEMFI. [Downloadable!]
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