We propose a solution concept for social environments called social rationalizability with mediation that identifies the consequences of common knowledge of rationality and farsightedness. In a social environment several coalitions may and could be willing to move at the same time. Individuals...

We provide a new interpretation of the Nash solution, using fictitious play. We show that the Nash demand game has the fictitious play property almost everywhere, and present two initial demand games which exactly and approximately implement the Nash solution. Thanks to the exact implementation...

The value is a solution concept for n-person strategic games, developed by Nash, Shapley, and Harsanyi. The value provides an a priori evaluation of the economic worth of the position of each player, reflecting the players' strategic possibilities, including their ability to make threats against...

In a veto game, we investigate the effects of "buyout" which allows non-veto players strategically form an intermediate coalition. We report two main experimental findings in this paper. First, the frequency of intermediate coalition formation is much lower than predicted by theory, regardless...

I study the effects of improved public information on equilibrium welfare and price dispersion, providing sufficient conditions for negative and positive effects. Public information affects welfare by reducing excessive (though rational) pessimism induced by sequential learning. Reduced...

I derive a refinement of sequential equilibria of a noncooperative bargaining game when one player has incomplete information about the time preference of the other player. I show that if the types for this latter player are drawn from some totally ordered and finite lattice, Grossman &...

Subgame perfect equilibrium predictions of ultimatum bargaining games correspond poorly to the data gathered from human subjects in laboratory environments. Attempts to reconcile this discrepancy have taken one or more of three routes: (1) expanding the agent foresight and scope of decisions,...

This paper studies the problem of endogenous coalition formation in contests: how players organize themselves in groups when faced with the common objective of securing a prize by exerting costly effort. The model presented adopts an axiomatic approach by assuming certain properties for the...

We consider rules (strategies, commitments, contracts, or computer programs) that make behavior contingent on an opponent’s rule. The set of perfectly observable rules is not well defined. Previous contributions avoid this problem by restricting the rules deemed admissible. We instead limit...

We study strategies with one–period recall in the context of a general class of multilateral bargaining games. A strategy has one–period recall if actions in a particular period are only conditioned on information in the previous and the current period. We show that if players are...