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Retrading in market games

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  • Ghosal, Sayantan
  • Morelli, Massimo

Abstract

When agents are not price takers, they typically cannot obtain an efficient reallocation of resources in one round of trade. This paper presents a noncooperative model of imperfect competition where agents can retrade allocations,consistent with the Edgeworth’s idea of recontracting. We show that there are allocations on the Pareto frontier that can be approximated arbitrarily closely when trade is myopic, i.e., when agents play a static Nash equilibrium at every round of retrading. We then show that the converging sequence of allocations generated by myopic retrading can also be supported along some retrade-proof Subgame Perfect Equilibrium path when traders anticipate future rounds of retrading.

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Bibliographic Info

Article provided by Elsevier in its journal Journal of Economic Theory.

Volume (Year): 115 (2004)
Issue (Month): 1 (March)
Pages: 151-181

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Handle: RePEc:eee:jetheo:v:115:y:2004:i:1:p:151-181

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Web page: http://www.elsevier.com/locate/inca/622869

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Citations

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Cited by:
  1. Ghosal, Sayantan & Porter, James, 2013. "Decentralised exchange, out-of-equilibrium dynamics and convergence to efficiency," Mathematical Social Sciences, Elsevier, vol. 66(1), pages 1-21.
  2. John Duffy & Alexander Matros & Ted Temzelides, 2008. "Competitive Behavior in Market Games: Evidence and Theory," Working Papers 366, University of Pittsburgh, Department of Economics, revised Mar 2009.
  3. 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.
  4. Ghosal, Sayantan & Porter, James, 2010. "Out of Equilibrium Dynamics with Decentralized Exchange Cautious Trading and Convergence to Efficiency," The Warwick Economics Research Paper Series (TWERPS) 928, University of Warwick, Department of Economics.
  5. Jamsheed Shorish, 2010. "Functional rational expectations equilibria in market games," Economic Theory, Springer, vol. 43(3), pages 351-376, June.
  6. Flåm, Sjur Didrik & Gramstad, Kjetil, 2012. "Direct Exchange in Linear Economies," Working Papers in Economics 05/12, University of Bergen, Department of Economics.
  7. Gaël Giraud, 2004. "The limit-price exchange process," Cahiers de la Maison des Sciences Economiques b04118, Université Panthéon-Sorbonne (Paris 1).
  8. Sjur Didrik Flåm, 2013. "Reaching Market Equilibrium Merely by Bilateral Barters," CESifo Working Paper Series 4504, CESifo Group Munich.
  9. Giraud, Gael, 2003. "Strategic market games: an introduction," Journal of Mathematical Economics, Elsevier, vol. 39(5-6), pages 355-375, July.

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