Meier [Games Econ. Behav. 62, 53–66] shows that the universal knowledge–belief space exists. However, besides the universality there is an other important property might be imposed on knowledge–belief spaces, inherited also from type spaces, the completeness. In this paper, we introduce...

This article surveys the theoretical literature on legislative bargaining with endogenous status-quo. These are the legislative bargaining situations in which in each period a new policy is decided and the policy implemented in the event of no agreement is endogenously determined by the outcome...

This paper establishes a clear connection between equilibrium theory, game theory and social choice theory by showing that, for a well defined social choice problem, a condition which is necessary and sufficient to solve this problem--limited arbitrage--is the same as the condition which is...

A well known and established model in communication policy in sociology and marketing is that of opinion leadership. Opinion leaders are actors in a society who are able to affect the behavior of other members called followers. Hence, opinion leaders might have a considerable impact on the...

A well known and established model in communication policy in sociology and marketing is that of opinion leadership. Opinion leaders are actors in a society who are able to affect the behavior of other members called followers. Hence, opinion leaders might have a considerable impact on the...

A committee of experts votes between a multi-attribute alternative and status quo. Each expert is a biased specialist who can privately evaluate only one attribute and puts more weight on it. We study whether a social-minded principal would compose the committee of more or less biased experts....

A well known and established model in communication policy in sociology and marketing is that of opinion leadership. Opinion leaders are actors in a society who are able to affect the behavior of other members called followers. Hence, opinion leaders might have a considerable impact on the...

In a Bayesian model of group decision-making, dependence among the agents' types has been shown to have a beneficial effect on the design of incentive compatible mechanisms that achieve the efficient choice associated with complete information. This effect is shown here to depend as much upon...

A well known and established model in communication policy in sociology and marketing is that of opinion leadership. It is based on the idea of a two-step flow of communication. Opinion leaders are actors in a society who are able to affect the behavior of other members of the society called...

We analyze and evaluate the different decision rules describing the Council of Ministers of the EU starting from 1958 up to date. Most of the existing studies use the Banzhaf index (for binary voting) or the Shapley-Shubik index (for distributive politics). We argue in favor of the nucleolus as...