We consider negotiations selecting one-dimensional policies. Individuals have single-peaked preferences, and they are impatient. Decisions arise from a bargaining game with random proposers and (super) majority approval, ranging from the simple majority up to unanimity. The existence and...

In the setting of a one-dimensional legislative bargaining game, we characterize qualified majority rules maximizing social surplus, that is, the sum of individual benefits. The simple majority rule maximizes social surplus when individual utilities are tent-shaped. When the utilities are...

Abstract The flourishing internet-based trade motivates our model of two-sided markets with multilevel mediation, in which a seller, intermediaries at various levels and buyers are embedded in a symmetric tree. Adapting the framework of the single-unit first price auction to trees, we show, in...

We consider a multilateral bargaining game in which the agents can be classified into two groups according to their instantaneous preferences. In one of these groups there is one agent with a different discount factor. We analyze how this time-preference heterogeneity may generate multiplicity...