Existence and uniqueness of ordinal Nash outcomes

In this paper we present necessary and sufficient conditions for existence and uniqueness of ordinal Nash outcomes. These outcomes are derived from th e ordinal Nash solution-a reinterpretation and an extension of the Nash bar gaining solution that allows bargainers to have preference relations that a re more general than expected utility. Our task is undertaken by the constr uction of a new notion called "induced utilities". Journal of Economic Lite rature Classification Number: C78. (C) 2000 Academic Press.