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Locational market power in network constrained markets

Author

Listed:
  • Atkins, Karla
  • Chen, Jiangzhuo
  • Anil Kumar, V.S.
  • Macauley, Matthew
  • Marathe, Achla

Abstract

This paper studies the issue of locational market power of suppliers in a market that is situated on a network. Locational market power arises when locational advantage allows suppliers to act non-competitively and raise prices above competitive levels. We propose a quantifiable definition of locational market power and analyze its properties over a general network. We also conduct a detailed analysis of the topological cause of the market power for a real electrical network using network analysis tools. We show that strategic alliances among small generators with geographical advantage can lead to significant amounts of market power. In the case of inelastic demand, the collusive behavior among suppliers leads to higher incidence of locational market power. This power is curtailed as demand becomes more responsive to price, supporting the view that efficient markets require active participation from the consumers. We also observe that if the supply is more elastic than demand, then supply can override some of the positive effects of elastic demand.

Suggested Citation

  • Atkins, Karla & Chen, Jiangzhuo & Anil Kumar, V.S. & Macauley, Matthew & Marathe, Achla, 2009. "Locational market power in network constrained markets," Journal of Economic Behavior & Organization, Elsevier, vol. 70(1-2), pages 416-430, May.
    • Handle: RePEc:eee:jeborg:v:70:y:2009:i:1-2:p:416-430
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    References listed on IDEAS

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    1. In-Koo Cho & Hyunsook Kim, 2007. "Market Power and Network Constraint in a Deregulated Electricity Market," The Energy Journal, International Association for Energy Economics, vol. 0(Number 2), pages 1-34.
    2. Catherine D. Wolfram, 1999. "Measuring Duopoly Power in the British Electricity Spot Market," American Economic Review, American Economic Association, vol. 89(4), pages 805-826, September.
    3. Cardell, Judith B. & Hitt, Carrie Cullen & Hogan, William W., 1997. "Market power and strategic interaction in electricity networks," Resource and Energy Economics, Elsevier, vol. 19(1-2), pages 109-137, March.
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