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Equilibres de Cournot-Walras dans une économie d'échange

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  • CODOGNATO, Giulio
  • GABSZEWICZ, Jean
Abstract
[eng] Cournot-walras equilffiria in an exchange economy. . We introduce the notion of Cournot-Walras equilibrium for a pure exchange economy. We first investigate, by means of an example, the relationship between the notion of Cournot equilibrium proposed by Shapley and Shubik and the Coumot-Walras equilibrium, and we show that they asymptotically coincide. Then we show, in the same example, that the Cournot-Walras equilibrium converges by replication to the Walras equilibrium. [fre] Équilibres de Cournot-Wakas dans une économie d'échange. . Nous introduisons la notion d'équilibre Cournot-Walras pour une économie d'échange. Sur base d'un exemple, nous étudions en premier lieu la relation entre la notion d'équilibre « à la Cournot » proposée par Shapley et Shubik et l'équilibre de Cournot-Walras, tout en démontrant qu'ils coïncident asymptotiquement. Ensuite, nous démontrons, par le même exemple, que l'équilibre de Cournot-Walras converge par « replication » vers l'équilibre walrasien.
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Suggested Citation

  • CODOGNATO, Giulio & GABSZEWICZ, Jean, 1991. "Equilibres de Cournot-Walras dans une économie d'échange," LIDAM Reprints CORE 964, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    • Handle: RePEc:cor:louvrp:964
    DOI: 10.2307/3502021
    Note: In : Revue Economique, 42(6), 1013-1026, 1991
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    1. Jaskold Gabszewicz, Jean & Vial, Jean-Philippe, 1972. "Oligopoly "A la cournot" in a general equilibrium analysis," Journal of Economic Theory, Elsevier, vol. 4(3), pages 381-400, June.
    2. Gerard Debreu, 1963. "On a Theorem of Scarf," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 30(3), pages 177-180.
    3. Shapley, Lloyd S & Shubik, Martin, 1977. "Trade Using One Commodity as a Means of Payment," Journal of Political Economy, University of Chicago Press, vol. 85(5), pages 937-968, October.
    4. Shitovitz, Benyamin, 1973. "Oligopoly in Markets with a Continuum of Traders," Econometrica, Econometric Society, vol. 41(3), pages 467-501, May.
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    Cited by:

    1. Busetto, Francesca & Codognato, Giulio & Ghosal, Sayantan, 2011. "Noncooperative oligopoly in markets with a continuum of traders," Games and Economic Behavior, Elsevier, vol. 72(1), pages 38-45, May.
    2. Sayantan Ghosal & Simone Tonin, 2014. "Non-Cooperative Asymptotic Oligopoly in Economies with Infinitely Many Commodities," Working Papers 2014_15, Business School - Economics, University of Glasgow.
    3. Bertrand Crettez & Pierre-André Jouvet & Ludovic A. Julien, 2014. "Tax Policy in a Simple General Oligopoly Equilibrium Model with Pollution Permits," Working Papers 1413, Chaire Economie du climat.
    4. Lahmandi-Ayed, Rim & Laussel, Didier, 2018. "When do imperfectly competitive firms maximize profits? The lessons from a simple general equilibrium model with shareholders’ voting," Journal of Mathematical Economics, Elsevier, vol. 78(C), pages 6-12.
    5. Busetto, Francesca & Codognato, Giulio & Ghosal, Syantan, 2008. "Cournot-Walras Equilibrium as a Subgame Perfect Equilibrium," Economic Research Papers 269786, University of Warwick - Department of Economics.
    6. Rudy Colacicco, 2015. "Ten Years Of General Oligopolistic Equilibrium: A Survey," Journal of Economic Surveys, Wiley Blackwell, vol. 29(5), pages 965-992, December.
    7. Ludovic A. Julien & Fabrice Tricou, 2008. "Market Price Mechanisms and Stackelberg General Equilibria," EconomiX Working Papers 2008-29, University of Paris Nanterre, EconomiX.
    8. Ludovic A. Julien, 2010. "From Imperfect To Perfect Competition: A Parametric Approach Through Conjectural Variations," Manchester School, University of Manchester, vol. 78(6), pages 660-677, December.
    9. Ludovic Alexandre Julien & Fabrice Tricou, 2006. "A note on price-taking and price-making behaviours in pure exchange economies," EconomiX Working Papers 2006-3, University of Paris Nanterre, EconomiX.
    10. Belan, Pascal & Michel, Philippe & Wigniolle, Bertrand, 2003. "Les effets à long terme des fonds de pension," L'Actualité Economique, Société Canadienne de Science Economique, vol. 79(4), pages 457-480, Décembre.
    11. Ghosal, Sayantan & Tonin, Simone, 2014. "Non-Cooperative Asymptotic Oligopoly in Economies with Infinitely Many Commodities," 2007 Annual Meeting, July 29-August 1, 2007, Portland, Oregon TN 2015-23, American Agricultural Economics Association (New Name 2008: Agricultural and Applied Economics Association).

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