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Contribution Details

Type Journal Article
Scope Discipline-based scholarship
Title Stochastic Strategy Adjustment in Coordination Games
Organization Unit
Authors
  • M Kosfeld
Item Subtype Original Work
Refereed Yes
Status Published in final form
Language
  • English
Journal Title Economic Theory
Publisher Springer
Geographical Reach international
ISSN 0938-2259
Volume 20
Number 2
Page Range 321 - 339
Date 2002
Abstract Text The paper explores a model of equilibrium selection in coordination games, where agents from an infinite population stochastically adjust their strategies to changes in their local environment. Instead of playing perturbed best-response, it is assumed that agents follow a rule of `switching to better strategies with higher probability'. This behavioral rule is related to bounded-rationality models of Rosenthal (1989) and Schlag (1998). Moreover, agents stay with their strategy in case they successfully coordinate with their local neighbors. Our main results show that both strict Nash equilibria of the coordination game correspond to invariant distributions of the process, hence evolution of play is not ergodic but instead depends on initial conditions. However, coordination on the risk-dominant equilibrium occurs with probability one whenever the initial fraction contains infinitely many agents, independent of the spatial distribution of these agents.
Digital Object Identifier 10.1007/s001990100223
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Keywords Equilibrium selection, Coordination game, Evolution, Strategy adjustment
Additional Information The original publication is available at www.springerlink.com