The main result of this paper is that the multiple equilibrium problem in mechanism design can be avoided in private-value models if agents do not use weakly-dominated strategies in equilibrium. The authors show that, in such settings, any incentive-compatible allocation rule can be made the...

This paper studies the problem of implementation of allocation rules in economic environments when agents are incompletely informed about the environment. The concept of equilibrium used is that of Bayesian Nash equilibrium. The authors show that a condition called Bayesian monotonicity is...

This paper identifies several social-choice correspondences which are or are not fully implementable in economic environments when agents are incompletely informed about the environment. The authors show that in contrast to results in the case of complete information, neither efficient...

We analyze a game of two-sided private information characterized by extreme adverse selection, and study a special case in the laboratory. Each player has a privately known "strength" and can decide to fight or compromise. If either chooses to fight, there is a conflict; the stronger player...

What cartel agreements are possible when firms have private information about production costs? For private cost uncertainty, the authors characterize the set of cartel agreements that can be supported, recognizing incentive and participation constraints. If defection results in either Cournot...

Two groups of voters of known sizes disagree over a single binary decision to be taken by simple majority. Individuals have different, privately observed intensities of preferences and before voting can buy or sell votes among themselves for money. We study the implication of such trading for...

The paper studies a simple voting system that has the potential to increase the power of minorities without sacrificing aggregate efficiency. Storable votes grant each voter a stock of votes to spend as desired over a series of binary decisions. By cumulating votes on issues that it deems most...