We analyze the rationalizability of variable-population social-choice functions in a welfaristframework. It is shown that xed-population rationalizability and a weakening ofcongruence together are necessary and suffcient for rational choice, given a plausible dominanceproperty that prevents the...

Bargaining under uncertainty is modeled by the assumption that thereare several possible states of nature, each of which is identied with abargaining problem...

This paper theoretically investigates the strategic implications of varying reliability of bargaining partners under unanimous and non-unanimous voting. Three players (one proposer, two responders) bargain over the distribution of a pie. One responder has private information about his valuation...

We consider ultimatum bargaining over the provision of a public good. Offer-maker and responder can delegate their decisions to agents, whose actual decision rules are opaque. We show that the responder will benefit from strategic opacity, even with bilateral delegation. The incomplete...

I revisit the Rubinstein (1982) model for the classic problem of price haggling and show that bargaining can become a "trap," where equilibrium leaves one party strictly worse off than if no transaction took place (e.g., the equilibrium price exceeds a buyer's valuation). This arises when one...

Several recent papers argue that contracts provide reference points that affect ex post behavior. We test this hypothesis in a canonical buyer-seller relationship with renegotiation. Our paper provides causal experimental evidence that an initial contract has a highly significant and...

We propose an elementary theory of wars fought by fully rational contenders that features three of the main rationalist explanations for armed conflicts: uncertainty, commitment, and indivisibility. Two parties play a Markov game that combines stages of bargaining, where offers are made, with...

We propose positive and normative foundations for the average prekernel of NTU games, and compare them with the existing ones for the prekernel. In our non-cooperative analysis, the average prekernel is understood as the equilibrium payoffs of a game where each player faces the possibility of...

This paper is a survey of the work in the Nash program for coalitional games, a research agenda proposed by Nash (1953) to bridge the gap between the non-cooperative and cooperative approaches to game theory.

We analyze a bargaining model where there is a long-term relationship between a seller and a buyer and there is bargaining over a sequence of surpluses that arrives at fixed points in time. Markov Perfect Equilibria are analyzed and equilibrium payoffs characterized. The transfers between the...