Mechanisms that are used to characterize Nash implementable social choice correspondences (SCC) have unattractive features since they have to cover every instances of the implementation problem. This is unavoidable, as there are infinitely many cases, but at the same time it leaves open whether...

A choice behavior is rational if it is made in accordance with the maximization of some context-independent preference relation. This paper re-examines the classical questions of implementation theory under complete information in a setting in which players' choices need not be rational and in...