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Duopole de Bertrand, asymétrie d'information et bien-être collectif

Listed author(s):
  • Michel Mougeot
  • Florence Naegelen

[eng] Bertrand duopoly, asynmetric information and social welfare In this paper, we consider a market with two firms having a private information on their marginal cost. In this context of asynmetric information, we prove that a two stages mechanism is not optimal from a social welfare point of view. [fre] Duopole de Bertrand. Asymétrie d'information et bien-être collectif Cet article étudie la concurrence en prix dans un duopole lorsque les deux entreprises ont une information privée sur leur coût marginal. La solution en deux étapes consistant à dissocier la mise en concurrence par les prix de la détermination de la quantité échangée est comparée avec une politique optimale maxi­misant le surplus collectif compte tenu de la demande. Il est démontré que le mécanisme en deux étapes implique un bien-être collectif inférieur à celui que réalise un mécanisme en une étape définissant un transfert monétaire global et la quantité simultanément.

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Article provided by Programme National Persée in its journal Revue économique.

Volume (Year): 42 (1991)
Issue (Month): 6 ()
Pages: 1027-1046

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Handle: RePEc:prs:reveco:reco_0035-2764_1991_num_42_6_409328
Note: DOI:10.3406/reco.1991.409328
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References listed on IDEAS
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  1. Vives, Xavier, 1984. "Duopoly information equilibrium: Cournot and bertrand," Journal of Economic Theory, Elsevier, vol. 34(1), pages 71-94, October.
  2. Vives, Xavier, 1985. "On the efficiency of Bertrand and Cournot equilibria with product differentation," Journal of Economic Theory, Elsevier, vol. 36(1), pages 166-175, June.
  3. Florence Naegelen, 1990. "L'arbitrage qualité-prix dans les procédures d'appels d'offres," Économie et Prévision, Programme National Persée, vol. 96(5), pages 95-108.
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