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Bilateral Market Power and Vertical Integration in the Spanish Electricity Spot Market

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Author Info
Kühn, Kai-Uwe
Machado, Matilde Pinto

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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 analyse 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 exercise of bilateral market power.

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Paper provided by C.E.P.R. Discussion Papers in its series CEPR Discussion Papers with number 4590.

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Date of creation: Sep 2004
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Handle: RePEc:cpr:ceprdp:4590

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Related research
Keywords: bilateral market power; electricity markets; market power test; supply function equilibirum; vertical integration;

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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
L94 - Industrial Organization - - Industry Studies: Transportation and Utilities - - - Electric Utilities

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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.:
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  3. 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)
  4. 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)
  5. 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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  6. 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!]
  7. 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)
  8. 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)
  9. James B. Bushnell & Erin T. Mansur, 2005. "CONSUMPTION UNDER NOISY PRICE SIGNALS: A STUDY OF ELECTRICITY RETAIL RATE DEREGULATION IN SAN DIEGO -super-* ," Journal of Industrial Economics, Blackwell Publishing, vol. 53(4), pages 493-513, December. [Downloadable!] (restricted)
  10. 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)
  11. 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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Cited by:
(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. 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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  3. Jose Ceron & Javier Suarez, 2006. "Hot And Cold Housing Markets: International Evidence," Working Papers wp2006_0603, CEMFI. [Downloadable!]
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  4. 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. [Downloadable!]
  5. Mª Dolores Furió Ortega & Julio Lucia López, . "Congestion management rules and trading strategies," Studies on the Spanish Economy 222, FEDEA. [Downloadable!]
  6. 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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  7. Xavier Vives, 2008. "Strategic Supply Function Competition with Private Information," CESifo Working Paper Series CESifo Working Paper No. , CESifo Group Munich. [Downloadable!]
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  8. 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!]
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  9. 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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  10. Malaguzzi Valeri, Laura, 2006. "Comparison of Electricity Deregulation around the World and Implications for Ireland," Quarterly Economic Commentary: Special Articles, Economic and Social Research Institute (ESRI), vol. 2006(3-Autumn), pages 38-63. [Downloadable!]
  11. 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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