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General equilibrium concepts under imperfect competition: a Cournotion approach

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  • D'ASPREMONT, Claude

    () (CORE, Université catholique de Louvain, B-1348 Louvain-la-Neuve, Belgium)

  • DOS SANTOS, R.

    (BETA, Université Louis Pasteur, Strasbourg, France)

  • GÉRARD-VARET, Louis-André

    (GREQE, Ecole des Hautes Etudes, Université d’Aix-Marseille)

Abstract

In a pure exchange economy we propose a general equilibrium concept under imperfect competition, the "Cournotian Monopolistic Competition Equilibrium", and compare it to the Cournot-Walras and the Monopolistic Competition concepts. The advantage of the proposed concept is to simplify the calculations attributed to strategic agents. Then we study the connexion of these concepts to a general concept of P-equilibrium which is extended to economies with production.

Suggested Citation

  • D'ASPREMONT, Claude & DOS SANTOS, R. & GÉRARD-VARET, Louis-André, 1992. "General equilibrium concepts under imperfect competition: a Cournotion approach," LIDAM Discussion Papers CORE 1992057, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
    • Handle: RePEc:cor:louvco:1992057
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    Cited by:

    1. Luís F. Costa, 2004. "Endogenous Markups and Fiscal Policy," Manchester School, University of Manchester, vol. 72(s1), pages 55-71, September.
    2. Julien, Ludovic A., 2011. "Unemployment equilibrium and economic policy in mixed markets," Economic Modelling, Elsevier, vol. 28(4), pages 1931-1940, July.
    3. 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.
    4. Rudy Colacicco, 2015. "Ten Years Of General Oligopolistic Equilibrium: A Survey," Journal of Economic Surveys, Wiley Blackwell, vol. 29(5), pages 965-992, December.
    5. Brito, Paulo B. & Costa, Luís F. & Dixon, Huw, 2013. "Non-smooth dynamics and multiple equilibria in a Cournot–Ramsey model with endogenous markups," Journal of Economic Dynamics and Control, Elsevier, vol. 37(11), pages 2287-2306.
    6. Paulo Brito & Luis Costa & Huw Dixon, 2007. "Business Cycles with Endogenous Mark-ups," Money Macro and Finance (MMF) Research Group Conference 2006 108, Money Macro and Finance Research Group.
    7. 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.
    8. Luís F. Costa & Huw Dixon, 2009. "Fiscal Policy under Imperfect Competition: A Survey," Working Papers Department of Economics 2009/25, ISEG - Lisbon School of Economics and Management, Department of Economics, Universidade de Lisboa.
    9. Ludovic A. Julien & Fabrice Tricou, 2008. "Market Price Mechanisms and Stackelberg General Equilibria," EconomiX Working Papers 2008-29, University of Paris Nanterre, EconomiX.
    10. Ludovic A. Julien & Fabrice Tricou, 2010. "Oligopoly Equilibria “à la Stackelberg” in Pure Exchange Economies," Recherches économiques de Louvain, De Boeck Université, vol. 76(2), pages 175-194.
    11. Francesca Busetto & Giulio Codognato & Sayantan Ghosal, 2012. "Noncooperative Oligopoly in Markets with a Continuum of Traders: A Limit Theorem," EconomiX Working Papers 2012-49, University of Paris Nanterre, EconomiX.
    12. Hubert Stahn, 2000. "Quelques réflexions sur la formation stratégique des prix dans un contexte d'équilibre général," Cahiers d'Économie Politique, Programme National Persée, vol. 37(1), pages 225-255.
    13. Luís F. Costa, "undated". "Product Differentiation, Fiscal Policy, and Free Entry," Discussion Papers 98/20, Department of Economics, University of York.
    14. Francesca Busetto & Giulio Codognato & Sayantan Ghosal, "undated". "Noncooperative oligopoly in markets with a continuum of traders: a limit theorem a la Cournot," Working Papers 2014_01, Business School - Economics, University of Glasgow.
    15. Costa, Luís F. & Dixon, Huw David, 2011. "Fiscal policy under imperfect competition with flexible prices: An overview and survey," Economics - The Open-Access, Open-Assessment E-Journal, Kiel Institute for the World Economy (IfW), vol. 5, pages 1-57.
    16. Francesca Busetto & Giulio Codognato & Sayantan Ghosal, 2017. "Asymptotic equivalence between Cournot–Nash and Walras equilibria in exchange economies with atoms and an atomless part," International Journal of Game Theory, Springer;Game Theory Society, vol. 46(4), pages 975-990, November.
    17. Busetto, Francesca & Codognato, Giulio & Ghosal, Sayantan, 2014. "Noncooperative Oligopoly in Markets with a Continuum of Traders: A Limit Theorem µa la Cournot," SIRE Discussion Papers 2014-019, Scottish Institute for Research in Economics (SIRE).

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