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Global Games with Strategic Substitutes

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Abstract

In this paper we use a non cooperative equilibrium selection approach as a notion of stability in link formation games. Specifically, we follow the global games approach first introduced by Carlsson and van Damme (1993), to study the robustness of the set of Nash equilibria for a class of link formation games in strategic form with supermodular payo. functions. Interestingly, the equilibrium selected is in conflict with those predicted by the traditional cooperative refinements. Moreover, we get a conflict between stability and e.ciency even when no such conflict exists with the cooperative refinements. We discuss some practical issues that these di.erent theoretical approaches raise in reality. The paper also provides an extension of the global game theory that can be applied beyond network literature.

Suggested Citation

  • Rodrigo Harrison & Roberto Munoz, 2003. "Global Games with Strategic Substitutes," Working Papers gueconwpa~03-03-07, Georgetown University, Department of Economics.
  • Handle: RePEc:geo:guwopa:gueconwpa~03-03-07
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    Cited by:

    1. Rosenkranz, Stephanie & Weitzel, Utz, 2012. "Network structure and strategic investments: An experimental analysis," Games and Economic Behavior, Elsevier, vol. 75(2), pages 898-920.
    2. Eric Hoffmann, 2013. "Global Games Selection in Games with Strategic Substitutes or Complements," WORKING PAPERS SERIES IN THEORETICAL AND APPLIED ECONOMICS 201308, University of Kansas, Department of Economics.
    3. Rodrigo Harrison & Pedro Jara-Moroni, 2013. "A Dominance Solvable Global Game with Strategic Substitutes," Documentos de Trabajo 440, Instituto de Economia. Pontificia Universidad Católica de Chile..
    4. Harrison, Rodrigo & Jara-Moroni, Pedro, 2015. "A dominance solvable global game with strategic substitutes," Journal of Mathematical Economics, Elsevier, vol. 57(C), pages 1-11.

    More about this item

    Keywords

    Games; Networks; Equilibrium Selection.;

    JEL classification:

    • C70 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - General
    • D20 - Microeconomics - - Production and Organizations - - - General
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design

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