An Epistemic Characterization of Extensive Form Rationalizability

Pierpaolo Battigalli, Marciano Siniscalchi
1999 Social Science Research Network  
We use an extensive form, universal type space to provide the following epistemic characterization of extensive form rationalizability. Say that player i strongly believes event E if i is certain of E conditional on each of her information sets consistent with E. Our main contribution is to show that a strategy profile s is extensive form rationalizable if and only if there is a state in which s is played and (0) everybody is rational, (
doi:10.2139/ssrn.159152 fatcat:yidiaxeyp5a6hgtr6ssdz7i5jq