We characterize the sharing rule for which a contribution mechanism achieves efficiency in a cooperative production setting when agents are heterogeneous. This rule differs from the one obtained by Sen for the case of identical agents. We also show for a large class of sharing rules that if Nash...

In this paper we present a model of war between two rational and completely informed players. We show that in the absence of binding agreements war can be avoided in many cases by one player transferring money to the other player. In most cases, the "rich" country transfers part of her money to...

In this paper we present a model of oligopoly and financial constraints. We study allocations which are bankruptcy-free (BF) in the sense that no firm can drive another firm to bankruptcy without becoming bankrupt. We show how such allocations can be sustained as an equilibrium of a dynamic...

We present a model of cooperative production in which rational agents might carry out sabotage activities that decrease output. We provide necessary and sufficient conditions for the existence of a Nash equilibrium without sabotage. It is shown that the absence of sabotage in equilibrium depends...

In this paper we consider a model of cooperative production in which rational agents have the possibility to engage in sabotage activities that decrease output. It is shown that sabotage depends on the interplay between the degree of congestion, the technology of sabotage, the number of agents...

We characterize the sharing rule for which a contribution mechanism achieves efficiency in a cooperative production setting when agents are heterogeneous. The sharing rule bears no resemblance to those considered by the previous literature. We also show for a large class of sharing rules that if...

In this paper we present a model of oligopoly and financial constraints. We study allocations which are bankruptcy-free (BF) in the sense that no firm can drive another firm to bankruptcy without becoming bankrupt. We show how such allocations can be sustained as an equilibrium of a dynamic...

In this paper we study a two stage contest where the strength of players in the second stage depends on the result of the contest in the first stage. We show that this contest displays properties that are not present in one shot contests. Non-symmetric players make different efforts in the first...

In this paper we study a two period contest where the strength of players in the second period depends on the result of the contest in the first stage. We show that in contrast to one-shot contests in the same setting, heterogeneous players exert different efforts in the first stage and rent...

In this paper we present a model of war between two rational and completely informed players. We show that in the absence of binding agreements war can be avoided in many cases by one player transferring money to the other player. In most cases, the "rich" country transfers part of its money to...