Article dans une série de papiers de travail :
Étienne de Villemeur
et Annalisa Vinella
, « Long-term contracting in hydro-thermal electricity generation: welfare and environmental impact »
, TSE Working Paper
, n°10-182, 13 juillet 2010.
We consider electricity generation industries where thermal operators imperfectly compete with hydro operators that manage a (scarce) water stock stored in reservoirs over a natural cycle. We explore how the exercise of intertemporal market power affects social welfare and environmental quality. We show that, as compared to the outcome of spot markets, long-term contracting either exacerbates or alleviates price distortions, depending upon the consumption pattern over the water cycle. Moreover, it induces a second-order environmental effect that, in the presence of a thermal competitive fringe, is critically related to the thermal market shares in the different periods of the cycle. We conclude by providing policy insights.
L13 : Oligopoly and Other Imperfect Markets
L93 : Air Transportation
Q50 : Environmental Economics / General