Hedging and Vertical Integration in Electricity Markets
Aïd, René; Chemla, Gilles; Porchet, Arnaud; Touzi, Nizar (2011), Hedging and Vertical Integration in Electricity Markets, Management Science, 57, 8, p. iv-1509. 10.1287/mnsc.1110.1357
TypeArticle accepté pour publication ou publié
Journal nameManagement Science
Institute for Operations Research and the Management Sciences
MetadataShow full item record
Laboratoire d'Economie de Dauphine [LEDa]
Dauphine Recherches en Management [DRM]
Centre de Mathématiques Appliquées - Ecole Polytechnique [CMAP]
Abstract (EN)This paper analyzes the interactions between competitive (wholesale) spot, retail, and forward markets and vertical integration in electricity markets. We develop an equilibrium model with producers, retailers, and traders to study and quantify the impact of forward markets and vertical integration on prices, risk premia, and retail market shares. We point out that forward hedging and vertical integration are two separate mechanisms for demand and spot price risk diversification that both reduce the retail price and increase retail market shares. We show that they differ in their impact on prices and firms' utility because of the asymmetry between production and retail segments. Vertical integration restores the symmetry between producers' and retailers' exposure to demand risk, whereas linear forward contracts do not. Vertical integration is superior to forward hedging when retailers are highly risk averse. We illustrate our analysis with data from the French electricity market.
Subjects / Keywordscorporate finance; industries; electric–electronic; financial institutions; markets; asset pricing
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