We review the recent theoretical developments toward understanding the Mott phases and quantum phase transition of extended Bose–Hubbard models on lattices in two spatial dimensions. We focus on the description of these systems using the dual vortex picture and point out the crucial role...

Research in human information processing demonstrates that the presence of irrelevant information has an adverse effect on the quality of decisions. Decision makers are unable to identify and separate the effect of irrelevant information, thereby reducing the quality of decisions. The propensity...

The authors propose a solution concept--which they call viable proposals--for games in coalitional form that endogenously determines a coalition structure together with an associated set of payoff configurations as parts of the solution. They show that there is at least one viable proposal for...

We study a variant of the multi-candidate Hotelling-Downs model that recognizes that politicians, even after declaring candidacy, have the option of withdrawing from the electoral contest before the election date and saving the cost of continuing campaign. We find that this natural variant...

This paper develops a theory of sequential lending in groups in micro-finance that centers on the notion of dynamic incentives, in particular the simple idea that default incentives should be relatively uniformly distributed across time. In a framework that allows project returns to accrue over...

This paper provides a simple axiomatic foundation of rational choice when the indifference relation is not necessarily transitive. Utilizing a notion of revealed preference relation, which says that an alternative x is revealed preferred to an alternative y whenever x is chosen while y is...