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The Environmental Impact of Bertrand and Cournot Duopolies. A Cautionary Note

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  • L. Lambertini
  • A. Tampieri

Abstract

We compare a Bertrand with a Cournot duopoly in a setting where production is polluting and exploits natural resources, and firms bear convex production costs. We adopt Dastidar's (1995) approach, yielding a continuum of Bertrand-Nash equilibria ranging above marginal cost pricing also, to show that softening price competition may lead to a lower output production in a Bertrand rather than a Cournot industry. The market structure bringing about the lowest output determines the highest social welfare, given the fact that the negative environmental effects of production more than offset the gain in consumer surplus.

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Paper provided by Dipartimento Scienze Economiche, Universita' di Bologna in its series Working Papers with number wp812.

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Date of creation: Feb 2012
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Handle: RePEc:bol:bodewp:wp812

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  1. Dastidar, Krishnendu Ghosh, 1995. "On the Existence of Pure Strategy Bertrand Equilibrium," Economic Theory, Springer, vol. 5(1), pages 19-32, January.
  2. Francisco J. André & Paula González & Nicolás Porteiro, 2007. "Strategic Quality Competition and the Porter Hypothesis," Working Papers 07.03, Universidad Pablo de Olavide, Department of Economics.
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