We reconsider the allocational invariance of equilibria to different formulations of market completeness. We identify the so-far neglected assumption of sophisticated behavior as crucial to this result. The paper studies three market structures. First, the Arrow-Debreu setting is considered....

There is a growing body of research in economics that studies the consequences of time-inconsistent preferences. This paper introduces time-inconsistent preferences in a general equilibrium setting. We discuss how the standard notion of competitive equilibrium should be extended in order to...

This paper studies intertemporal social preferences. We introduce intertemporal dictator and ultimatum games where players decide on the timing of monetary payoffs. The setting is two-dimensional rather than one-dimensional, in the sense that inequalities can arise in the time as well as in the...