Conditional dominance, rationalizability, and game forms

We propose a notion of conditional dominance for games whose representation s designate information sets. We prove that iterated conditional dominance is equivalent to extensive form rationalizability. We also conduct a genera l analysis of these concepts, yielding new insights on rationalizability an d on the equivalence of solutions when applied to different representations of a game. Journal of Economic Literature Classification Numbers: C63, C72 , C73. (C) 1998 Academic Press.