This paper shows that both Arrow`s Theorem and the Gibbard-Satterthwaite Theorem follow from a single impossibility theorem. This theorem states that two properties - Pareto efficiency and a condition called Preference Reversal - lead to the dictatorship result.

n this paper we investigate the implementation problem arising when some of the players are ``faulty" in the sense that they fail to act optimally. The exact number and identity of the faulty players is unknown to the planner and to the nonfaulty players, but it is common knowledge that there...

This paper argues that when organizations are imperfect in the sense that members may make mistakes and messages may be distorted, then the inner structure of the organization should be explicitly modeled. This paper proposes a framework for studying games between imperfect organizations.