The authors consider the allocation of goods in exchange economies with a finite number of agents who may have private information about their preferences. They characterize the set of allocation rules that are compatible with individual incentives or, in other words, the set of strategy-proof...

The main result of this paper characterizes voting by committees. There are n voters and K objects. Voters must choose a subset of K. Voting by committees is defined by one monotone family of winning coalitions for each object; an object is chosen if it is supported by one of its winning...

The authors examine a bargaining setting where heterogeneous buyers and sellers are repeatedly matched and time is costly. They characterize efficiency and then, using an implementation approach, study the allocations that can result in equilibrium when the matched buyers and sellers bargain...

This paper offers a new approach to the study of economic problems usually modeled as games of incomplete information with discontinuous payoffs. Typically, the discontinuities arise from indeterminacies (ties) in the underlying problem. The point of view taken here is that the tie-breaking...

A probability distribution governing the evolution of a stochastic process has infinitely many Bayesian representations of the form mu = integral operator [subscript theta] mu[subscript theta] delta lambda (theta). Among these, a natural representation is one whose components (mu[subscript...

We show existence of equilibria in distributional strategies for a wide class of private value auctions, including the first general existence result for double auctions. The set of equilibria is invariant to the tie-breaking rule. The model incorporates multiple unit demands, all standard...