Scandinavian Working Papers in Economics

SSE/EFI Working Paper Series in Economics and Finance,
Stockholm School of Economics

No 714: Epistemic robustness of sets closed under rational behavior

Geir Asheim, Mark Voorneveld () and Jörgen W. Weibull
Additional contact information
Geir Asheim: Dept. of Economics, University of Oslo, Postal: P.O. Box 1095 Blindern, NO-0317 Oslo, Norway
Mark Voorneveld: Dept. of Economics, Stockholm School of Economics, Postal: P.O. Box 6501, SE-113 83 Stockholm, Sweden
Jörgen W. Weibull: Dept. of Economics, Stockholm School of Economics, Postal: P.O. Box 6501, SE-113 83 Stockholm, Sweden

Abstract: This paper provides two conditions of epistemic robustness, robustness to alternative best replies and robustness to non-best replies, and uses them to characterize variants of curb sets in finite games, including the set of rationalizable strategies.

Keywords: epistemic game theory; epistemic robustness; rationalizability; closedness under rational behavior; mutual p-belief

JEL-codes: C72; D83

16 pages, March 30, 2009

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