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Coalitional Rationalizability

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  • Ambrus, Attila
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    Abstract

    This paper investigates how groups or coalitions of players can act in their collective interest in noncooperative normal form games even if equilibrium play is not assumed. The main idea is that each member of a coalition will confine play to a subset of their strategies if it is in their mutual interest to do so. An iterative procedure of restrictions is used to define a noncooperative solution concept, the set of coalitionally rationalizable strategies. The procedure is analogous to iterative deletion of never best response strategies, but operates on implicit agreements by different coalitions. The solution set is a nonempty subset of the rationalizable strategies.

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    File URL: http://dash.harvard.edu/bitstream/handle/1/3200266/ambrus_coalitional.pdf
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    Bibliographic Info

    Paper provided by Harvard University Department of Economics in its series Scholarly Articles with number 3200266.

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    Date of creation: 2006
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    Publication status: Published in Quarterly Journal of Economics
    Handle: RePEc:hrv:faseco:3200266

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    Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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    1. Licun Xue, 1998. "Coalitional stability under perfect foresight," Economic Theory, Springer, vol. 11(3), pages 603-627.
    2. Volij, Oscar & Dagan, Nir & Serrano, Roberto, 1997. "A Non-Cooperative View of Consistent Bankruptcy Rules," Staff General Research Papers 5130, Iowa State University, Department of Economics.
    3. Srabana Gupta & Richard E. Romano, 1998. "Monitoring the Principal with Multiple Agents," RAND Journal of Economics, The RAND Corporation, vol. 29(2), pages 427-442, Summer.
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    Cited by:
    1. Ambrus, Attila, 2009. "Theories of Coalitional Rationality," Scholarly Articles 3204917, Harvard University Department of Economics.
    2. Ambrus, Attila, 2009. "Theories of coalitional rationality," Journal of Economic Theory, Elsevier, vol. 144(2), pages 676-695, March.
    3. Luo, Xiao & Yang, Chih-Chun, 2009. "Bayesian coalitional rationalizability," Journal of Economic Theory, Elsevier, vol. 144(1), pages 248-263, January.
    4. repec:dgr:umamet:2009059 is not listed on IDEAS
    5. Vartiainen, Hannu, 2011. "Dynamic coalitional equilibrium," Journal of Economic Theory, Elsevier, vol. 146(2), pages 672-698, March.

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