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The optimality of optimal punishments in Cournot supergames

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  • Azacis, Helmuts
  • Collie, David R.

Abstract

The result of Colombo and Labrecciosa [Colombo, Luca and Labrecciosa, Paola (2006). 'The suboptimality of optimal punishments in Cournot supergames', Economics Letters 90, pp. 116-121.] that optimal punishments are inferior to Nash-reversion trigger strategies with decreasing marginal costs is shown to be due to the output when a firm deviates from the punishment path becoming negative.

Suggested Citation

  • Azacis, Helmuts & Collie, David R., 2009. "The optimality of optimal punishments in Cournot supergames," Economics Letters, Elsevier, vol. 105(1), pages 56-57, October.
  • Handle: RePEc:eee:ecolet:v:105:y:2009:i:1:p:56-57
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    References listed on IDEAS

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    1. James W. Friedman, 1971. "A Non-cooperative Equilibrium for Supergames," Review of Economic Studies, Oxford University Press, vol. 38(1), pages 1-12.
    2. Abreu, Dilip, 1988. "On the Theory of Infinitely Repeated Games with Discounting," Econometrica, Econometric Society, vol. 56(2), pages 383-396, March.
    3. Colombo, Luca & Labrecciosa, Paola, 2006. "The suboptimality of optimal punishments in Cournot supergames," Economics Letters, Elsevier, vol. 90(1), pages 116-121, January.
    4. Abreu, Dilip, 1986. "Extremal equilibria of oligopolistic supergames," Journal of Economic Theory, Elsevier, vol. 39(1), pages 191-225, June.
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    More about this item

    Keywords

    Optimal punishments Trigger strategies Collusion Cartels;

    JEL classification:

    • C73 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Stochastic and Dynamic Games; Evolutionary Games
    • D43 - Microeconomics - - Market Structure, Pricing, and Design - - - Oligopoly and Other Forms of Market Imperfection
    • L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets

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