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Competitive behavior in market games: Evidence and theory

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  • Duffy, John
  • Matros, Alexander
  • Temzelides, Ted

Abstract

We explore whether competitive outcomes arise in an experimental implementation of a market game, introduced by Shubik (1973) [21]. Market games obtain Pareto inferior (strict) Nash equilibria, in which some or possibly all markets are closed. We find that subjects do not coordinate on autarkic Nash equilibria, but favor more efficient Nash equilibria in which all markets are open. As the number of subjects participating in the market game increases, the Nash equilibrium they achieve approximates the associated competitive equilibrium of the underlying economy. Motivated by these findings, we provide a theoretical argument for why evolutionary forces can lead to competitive outcomes in market games.

Suggested Citation

  • Duffy, John & Matros, Alexander & Temzelides, Ted, 2011. "Competitive behavior in market games: Evidence and theory," Journal of Economic Theory, Elsevier, vol. 146(4), pages 1437-1463, July.
  • Handle: RePEc:eee:jetheo:v:146:y:2011:i:4:p:1437-1463
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    References listed on IDEAS

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    Cited by:

    1. Régis Breton & Bertrand Gobillard, 2005. "Robustness of equilibrium price dispersion in finite market games," Post-Print halshs-00257207, HAL.
    2. Iván Barreda Tarrazona & Aurora García-Gallego & Nikolaos Georgantzis & Nikolas Ziros, 2015. "Market games as social dilemmas," Working Papers 2015/10, Economics Department, Universitat Jaume I, Castellón (Spain).
    3. Dimitrios Xefteris & Nicholas Ziros, 2017. "Strategic Vote Trading in Power Sharing Systems," American Economic Journal: Microeconomics, American Economic Association, pages 76-94.
    4. Vasin, A., 2010. "Evolutionary Game Theory and Economics. Part 2. Stability of Equilibria. Special Features of Human Behavior Evolution," Journal of the New Economic Association, New Economic Association, issue 5, pages 10-27.
    5. Alex Dickson & Roger Hartley, 2011. "Trade in bilateral oligopoly with endogenous market formation," Working Papers 1104, University of Strathclyde Business School, Department of Economics.
    6. Duersch, Peter & Oechssler, Joerg & Schipper, Burkhard C, 2010. "Pure Saddle Points and Symmetric Relative Payoff Games," MPRA Paper 20864, University Library of Munich, Germany.
    7. Athreya, Kartik B., 2014. "Big Ideas in Macroeconomics: A Nontechnical View," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262019736, January.
    8. Mandel, Antoine & Gintis, Herbert, 2016. "Decentralized Pricing and the equivalence between Nash and Walrasian equilibrium," Journal of Mathematical Economics, Elsevier, pages 84-92.
    9. Peter Duersch & Jörg Oechssler & Burkhard Schipper, 2012. "Pure strategy equilibria in symmetric two-player zero-sum games," International Journal of Game Theory, Springer;Game Theory Society, vol. 41(3), pages 553-564, August.
    10. Dmitry Levando, 2012. "A Survey Of Strategic Market Games," Economic Annals, Faculty of Economics, University of Belgrade, vol. 57(194), pages 63-106, July - Se.

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