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Specialized oligopolies in a pure exchange economy: The symmetric Cournot–Walras equilibrium

Author

Listed:
  • Ludovic Julien

    (EconomiX - EconomiX - UPN - Université Paris Nanterre - CNRS - Centre National de la Recherche Scientifique)

  • Fabrice Tricou

    (EconomiX - EconomiX - UPN - Université Paris Nanterre - CNRS - Centre National de la Recherche Scientifique)

Abstract

This paper explores the symmetric Cournot–Walras equilibrium (SCWE) as an alternative concept to the asymmetric Cournot–Walras equilibrium (ACWE) a` la Codognato–Gabszewicz. All agents have specialized initial endowments but generalized consumption activities: they are strategic suppliers of the only good they own and competitive demanders of all the other ones. Two kinds of results are showed in the framework of an example. First, the asymptotic identification of this strategic equilibrium with the competitive equilibrium when all markets are replicated and its asymptotic identification with the ACWE when all markets but one are replicated. Second, when the SCWE is compared to the Walrasian equilibrium (WE), two results are obtained in terms of welfare.

Suggested Citation

  • Ludovic Julien & Fabrice Tricou, 2005. "Specialized oligopolies in a pure exchange economy: The symmetric Cournot–Walras equilibrium," Post-Print hal-05758883, HAL.
    • Handle: RePEc:hal:journl:hal-05758883
    DOI: 10.1016/j.rie.2005.06.002
    as

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