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Competitive Equilibrium in the Italian Wholesale Electricity Market

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Listed:
  • Simona BIGERNA
  • Carlo Andrea BOLLINO
  • Maria Chiara D'ERRICO
  • Paolo POLINORI

Abstract

The market power analysis in electricity market is relevant for understanding the competitive development of the industry’s restructuring and the liberalization process. The paper analyzes the market power exercised by power generators in the Italian wholesale electricity market. Following the approach of Wolak (2003, 2009), the extent of market power is measured using the Lerner index computed as the inverse of arc elasticity of the residual demand faced by each Cournot competitors. Then, the market supply curves have been adjusted to entail market power effects and the new market resolutions were derived. The new equilibrium prices are the competitive ones and represent the market clearing price that would have been if the electricity market was competitive and the effects of unilateral market power were removed.

Suggested Citation

  • Simona BIGERNA & Carlo Andrea BOLLINO & Maria Chiara D'ERRICO & Paolo POLINORI, 2015. "Competitive Equilibrium in the Italian Wholesale Electricity Market," Working papers of the Department of Economics - University of Perugia (IT) 0017/2015, Università di Perugia, Dipartimento Economia.
    • Handle: RePEc:pia:papers:0017/2015
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    References listed on IDEAS

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    Cited by:

    1. Graf, Christoph & Marcantonini, Claudio, 2017. "Renewable energy and its impact on thermal generation," Energy Economics, Elsevier, vol. 66(C), pages 421-430.

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    More about this item

    Keywords

    Market Power; Residual demand; Lerner Index; Transmission Congestion;
    All these keywords.

    JEL classification:

    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection

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