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Multiplier effect and comparative statics in global games of regime change

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  • Szkup, Michal

    (Department of Economics, University of British Columbia)

Abstract

This paper provides a general analysis of comparative statics results in global games. I show that the effect of a change in any parameter of a global game model of regime change can be decomposed into a direct effect, which captures the effect of a change in parameters when agents' beliefs are held constant, and a multiplier effect, which captures the role of adjustments in agents' beliefs. I characterize conditions under which the multiplier effect is strong and relate it to the strength of strategic complementarities and the publicity multiplier emphasized in earlier work. Finally, I use the above insights to identify when comparative statics can be deduced from the model's primitives, when they do not depend on the information structure, and when they coincide with predictions of the complete information model.

Suggested Citation

  • Szkup, Michal, 2020. "Multiplier effect and comparative statics in global games of regime change," Theoretical Economics, Econometric Society, vol. 15(2), May.
    • Handle: RePEc:the:publsh:3074
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    Cited by:

    1. Michal Szkup, 2022. "Preventing Self-Fulfilling Debt Crises: A Global Games Approach," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 43, pages 22-55, January.
    2. Lee, Kyounghun & Oh, Frederick Dongchuhl, 2021. "Public information and global games with strategic complements and substitutes," Economics Letters, Elsevier, vol. 199(C).

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    More about this item

    Keywords

    Global games; comparative statics; multiplier effect; strategic complementarities; publicity multiplier;
    All these keywords.

    JEL classification:

    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • D84 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Expectations; Speculations

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