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On Payoff Heterogeneity in Games with Strategic Complementarities

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Author Info
Antonio Ciccone ()
James Costain

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Abstract

Payoff heterogeneity weakens positive feedback in binary choice models in two ways. First, heterogeneity drives individuals to corners where they are unaffected by strategic complementarities. Second, aggregate behaviour is smoother than individual behaviour when individuals are heterogeneous. However, this smoothing does not necessarily eliminate positive feedback or guarantee a unique equilibrium. In games with an unbounded, continuous choice space, heterogeneity may either weaken or strengthen positive feedback, depending on a simple convexity/concavity condition. We conclude that positive feedback phenomena derived in representative agent models will often be robust to heterogeneity.

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Publisher Info
Paper provided by Department of Economics and Business, Universitat Pompeu Fabra in its series Economics Working Papers with number 546.

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Date of creation: Apr 2001
Date of revision: Feb 2002
Handle: RePEc:upf:upfgen:546

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Web page: http://www.econ.upf.edu/

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Related research
Keywords: Heterogeneity; multiplicity; discrete choice; strategic complementarity; positive feedback;

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Find related papers by JEL classification:
C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games
E00 - Macroeconomics and Monetary Economics - - General - - - General

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References listed on IDEAS
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  1. Caballero, Ricardo J, 1992. "A Fallacy of Composition," American Economic Review, American Economic Association, vol. 82(5), pages 1279-92, December. [Downloadable!] (restricted)
    Other versions:
  2. Morris, Stephen & Shin, Hyun Song, 1998. "Unique Equilibrium in a Model of Self-Fulfilling Currency Attacks," American Economic Review, American Economic Association, vol. 88(3), pages 587-97, June. [Downloadable!] (restricted)
    Other versions:
  3. Schmutzler, Armin, 1998. "Changing places--the role of heterogeneity and externalities in cumulative processes," International Journal of Industrial Organization, Elsevier, vol. 16(4), pages 445-461, July. [Downloadable!] (restricted)
  4. Cooper, Russell & John, Andrew, 1988. "Coordinating Coordination Failures in Keynesian Models," The Quarterly Journal of Economics, MIT Press, vol. 103(3), pages 441-63, August. [Downloadable!] (restricted)
  5. Herrendorf, Berthold & Valentinyi, Akos & Waldmann, Robert, 2000. "Ruling Out Multiplicity and Indeterminacy: The Role of Heterogeneity," Review of Economic Studies, Blackwell Publishing, vol. 67(2), pages 295-307, April.
  6. Rothschild, Michael & Stiglitz, Joseph E., 1970. "Increasing risk: I. A definition," Journal of Economic Theory, Elsevier, vol. 2(3), pages 225-243, September. [Downloadable!] (restricted)
  7. Christophe Chamley, 1999. "Coordinating Regime Switches," The Quarterly Journal of Economics, MIT Press, vol. 114(3), pages 869-905, August. [Downloadable!] (restricted)
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Cited by:
(explanations, 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.)

  1. Randolph Luca Bruno, 2006. "Unique Equilibrium in a Model of Rule of Law," LEM Papers Series 2006/16, Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy. [Downloadable!]
  2. Stephen Morris & Hyun Song Shin, 2003. "Heterogeneity and Uniqueness in Interaction Games," Cowles Foundation Discussion Papers 1402, Cowles Foundation, Yale University. [Downloadable!]
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