agreement to a proposal under either majority or unanimity rule. If the first period proposal fails, the game ends immediately … incentive to vote "no" on the first proposal under unanimity rule, whereas no such incentive exists under majority rule. The … reason is that being perceived as a "high breakdown value type" is advantageous under unanimity rule, but disadvantageous …

relation. For two alternatives and an odd number of agents, it follows from May’s Theorem that the majority aggregation rule is … three alternatives. We provide a computer-aided solution to the existence of a locally unanimous, anonymous, and K-SP rule … for two agents and four alternatives. Finally, we show that there is no K-SP and anonymous rule which always chooses one …