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Strong Comparative Statics of Equilibria

Echenique, Federico
; 
Sabarwal, Tarun
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Abstract
Some results in the monotone comparative statics literature tell us that if a parameter increases, some old equilibria are smaller than some new equilibria. We give a sufficient condition such that at a new parameter value every old equilibrium is smaller than every new equilibrium. We also adapt a standard algorithm to compute a minimal such newer parameter value and apply this algorithm to a game of network externalities. Our results are independent of a theory of equilibrium selection and are valid for games of strategic complementarities.
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This is the Author's Final Draft. The original published version can be found at: http://dx.doi.org/10.1016/S0899-8256(02)00548-1.
Date
2003-02
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Elsevier
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Economics Scholarly Works
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Echenique_Sabarwal.pdf
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Keywords
Comparative statics, Computing equilibria, Strategic complementarities, Supermodular games
Citation
Echenique, Federico and Tarun Sabarwal (2003): “Strong Comparative Statics of Equilibria,” Games and Economic Behavior, 42(2), Feb., 307-314. http://dx.doi.org/10.1016/S0899-8256(02)00548-1
URI
https://hdl.handle.net/1808/8828
DOI
10.1016/S0899-8256(02)00548-1
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