Template-Type: ReDIF-Paper 1.0 Author-Name: Giacomo Bonanno Author-Name-First: Giacomo Author-Name-Last: Bonanno Author-Name: Elias Tsakas Author-Name-First: Elias Author-Name-Last: Tsakas Author-Workplace-Name: Department of Economics, University of California Davis Title: Qualitative analysis of common belief of rationality in strategic-form games Abstract: We study common belief of rationality in strategic-form games with ordinal utilities, employing a model of qualitative beliefs. We characterize the three main solution concepts for such games, viz., Iterated Deletion of Strictly Dominated Strategies (IDSDS), Iterated Deletion of Boergers-dominated Strategies (IDBS) and Iterated Deletion of Inferior Strategy Profiles (IDIP), by means of gradually restrictive properties imposed on the models of qualitative beliefs. As a corollary, we prove that IDIP refines IDBS, which refines IDSDS. Length: 16 File-URL: https://repec.dss.ucdavis.edu/files/WTtfpLJv3ic54bW6ynxAvZCc/17-5.pdf File-Format: application/pdf Number: 181 Classification-JEL: C7 KeyWords: Qualitative likelihood relation, ordinal payoffs, common belief of rationality, iterative deletion procedures Creation-Date: 20170511 Handle: RePEc:cda:wpaper:181