The Effect of Divestitures in the German Electricity Market

H. Weigt, Bert Willems

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In the most liberalized electricity markets, abuse of market power is a concern related to oligopolistic market structures, flaws in market architecture, and the specific characteristics of electricity generation and demand. Several methods have been suggested to improve the competitiveness of the liberalized electricity markets and to reallocate rents from generators to consumers. In this paper we study to what extend divestitures can improve the competitiveness of the electricity market. We quantify the expected developments under different divestiture scenarios for the German market, using Cournot and Supply Function Equilibrium simulations. We find an overall welfare gain in both models and show that those gains are highest if the divested assets are sold to independent and small firms, preventing the formation of additional firms that set prices strategically.
Original languageEnglish
Place of PublicationTilburg
Publication statusPublished - 2011

Publication series

NameCentER Discussion Paper


  • Supply Function Equilibrium
  • Cournot competition
  • electricity markets
  • divestitures


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