In normal-form games, rationalizability (Bernheim [3], Pearce [11]) on its own fails to exclude some very implausible … proper rationalizability. Nevertheless, some of these refinements also fail to eliminate un- reasonable outcomes and suffer … from several drawbacks. Therefore, we introduce the trembling-hand rationalizability concept, where the players’ actions …

rationalizability for multi-stage games with observed actions. Whe show that rationalizability does not exclude perpetual disagreement … or delay. Then, we define trembling-hand rationalizability and we show that it implies a unique solution. Moreover, this …

Moulin (1984) describes the class of nice games for which the solution concept of point-rationalizability coincides … all rationalizability concepts determine the same strategic solution. However, nice games are characterized by rather … convex and compact subsets of the real line ℝ. This note shows that equivalence of all rationalizability concepts can be …

We examine the maximal-element rationalizability of choice functions with arbitrary domains. While rationality … thoroughly in the earlier literature, this is not the case for maximal-element rationalizability, except when it coincides with … greatest-element rationalizability because of properties imposed on the rationalizing relation. We develop necessary and …

need not lead to rationalizability. I also present assumptions that allow rationalizability to follow from common knowledge … of rationality. These assumptions suggest that rationalizability may not rely on weaker assumptions about belief …