Bayesian Games with Unawareness and Unawareness Perfection

Burkhard Schipper and Martin Meier
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Martin Meier: Department of Economics, University of California Davis

No 285, Working Papers from University of California, Davis, Department of Economics

Abstract: Applying unawareness belief structures introduced in Heifetz, Meier, and Schipper (2012), we develop Bayesian games with unawareness, define equilibrium, and prove existence. We show how equilibria are extended naturally from lower to higher awareness levels and restricted from higher to lower awareness levels. We apply Bayesian games with unawareness to investigate the robustness of equilibria to uncertainty about opponents' awareness of actions. We show that a Nash equilibrium of a strategic game is robust to unawareness of actions if and only if it is not weakly dominated. Finally, we discuss the relationship between standard Bayesian games and Bayesian games with unawareness.

Keywords: Awareness; Unawareness; Type-space; Incomplete information; Bayesian games; Equilibrium; Perfection; Undominated equilibrium; Weak dominance; Inattention. (search for similar items in EconPapers)
JEL-codes: C70 C72 D80 D82 (search for similar items in EconPapers)
Pages: 34
Date: 2012-05-07
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Citations: View citations in EconPapers (2)

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Related works:
Journal Article: Bayesian games with unawareness and unawareness perfection (2014)
Working Paper: Bayesian Games with Unawareness and Unawareness Perfection (2013)
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