Signaling in a Global Game: Coordination and Policy Traps
Abstract
This paper introduces signaling in a global game so as to examine the informational role of policy in coordination environments such as currency crises and bank runs. While exogenous asymmetric information has been shown to select a unique equilibrium, we show that the endogenous information generated by policy interventions leads to multiple equilibria. The policy maker is thus trapped into a position in which self-fulfilling expectations dictate not only the coordination outcome but also the optimal policy. This result does not rely on the freedom to choose out-of-equilibrium beliefs, nor on the policy being a public signal; it may obtain even if the policy is observed with idiosyncratic noise.Download Info
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Bibliographic Info
Article provided by University of Chicago Press in its journal Journal of Political Economy.
Volume (Year): 114 (2006)
Issue (Month): 3 (June)
Pages: 452-484
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Web page: http://www.journals.uchicago.edu/JPE/
Related research
Keywords:Other versions of this item:
- George-Marios Angeletos & Christian Hellwig & Alessandro Pavan, 2005. "Signaling in a Global Game: Coordination and Policy Traps," Discussion Papers 1400, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
- C7 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory
- D8 - Microeconomics - - Information, Knowledge, and Uncertainty
- E5 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit
- E6 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook
- F3 - International Economics - - International Finance
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