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Existence and Uniqueness of Equilibrium in Labor-Managed Cournot Oligopoly


  • Koji Okuguchi

    () (Gifu Shotoku Gakuen University)

  • Ferenc Szidarovszky

    () (University of Arizona)


Labor-managed Cournot oligopoly with or without product differentiation is analyzed. First, the existence of Cournot equilibrium which is not necessarily unique is proved under general conditions based on the Brouwer fixed point theorem, which does not provide a direct computer method for finding the equilibrium. Second, a constructive proof of finding the unique equilibrium is presented for Cournot labor-managed oligopoly without product differentiation.

Suggested Citation

  • Koji Okuguchi & Ferenc Szidarovszky, 2007. "Existence and Uniqueness of Equilibrium in Labor-Managed Cournot Oligopoly," Rivista di Politica Economica, SIPI Spa, vol. 97(3), pages 9-16, May-June.
  • Handle: RePEc:rpo:ripoec:v:97:y:2007:i:3:p:9-16

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    References listed on IDEAS

    1. Fenoaltea, Stefano, 2003. "Peeking Backward: Regional Aspects of Industrial Growth in Post-Unification Italy," The Journal of Economic History, Cambridge University Press, vol. 63(04), pages 1059-1102, December.
    2. Crafts, N. F. R., 1997. "The Human Development Index and changes in standards of living: Some historical comparisons," European Review of Economic History, Cambridge University Press, vol. 1(03), pages 299-322, December.
    3. Kakwani, N., 1993. "Performance in living standards : An international comparison," Journal of Development Economics, Elsevier, vol. 41(2), pages 307-336, August.
    4. repec:cup:jechis:v:63:y:2004:i:04:p:1059-1102_00 is not listed on IDEAS
    5. Easterlin, Richard A., 1981. "Why Isn't the Whole World Developed?," The Journal of Economic History, Cambridge University Press, vol. 41(01), pages 1-17, March.
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    JEL classification:

    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
    • P13 - Economic Systems - - Capitalist Systems - - - Cooperative Enterprises


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