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Game Theory and Economic Modelling$
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David M. Kreps

Print publication date: 1990

Print ISBN-13: 9780198283812

Published to Oxford Scholarship Online: November 2003

DOI: 10.1093/0198283814.001.0001

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The Problems of Game Theory

The Problems of Game Theory

(p.91) 5 The Problems of Game Theory
Game Theory and Economic Modelling

David M. Kreps (Contributor Webpage)

Oxford University Press

The weaknesses of game theory for purposes of economic modelling are discussed: the theory requires that protocols for interaction are precise (whereas in the real world they are often ambiguous). The theory often provides many equilibria and no way to choose among them. Despite work on so‐called refinements of equilibrium, the theory fails to help us understand how individuals react to counter‐theoreticals in dynamic interactions. Equilibria are often very delicate, depending on states of nature that have very small probability a priori. The theory fails to explain how the rules of a particular game got to be what they are.

Keywords:   delicate equilibria, game rules, game theory, interaction protocols, multiple equilibria, refinements of equilibrium

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