【演讲者】瞿翔宇
【时间】6月10日（周五）中午12:30-2:00
【地点】经院302教室
【演讲者介绍】：瞿翔宇，巴黎大学（University of Paris 2）研究员。2012年博士毕业于The Ohio State University，其主要研究领域为微观经济学理论、决策理论、博弈论以及行为经济学，他的研究成果发表在 Economic Theory, Economics Letters, Journal of Mathematical Economics, Theory and Decision, Social Choice and Welfare, Journal of Behavioral Economics and Finance 等学术刊物上。
题目：Bayesian Aggregation with Heterogenous Beliefs and Values
摘要：Bayesian theory for individual decision-making under uncertainty prescribes that individuals posit a utility function, a probability distribution over events and evaluate each act on the basis of its expected utility. We attempt to generalize this model to social decision-making. The aggregation rules we consider require society`s beliefs and values to be respectively the affine aggregation of individuals beliefs and values. It is well-known that the standard Pareto condition is not compatible with such separate aggregation rules. Two natural extended Pareto condition are then suggested. Within the Anscome-Aumann framework, we show that the Invariant Pareto condition is equivalent to separate aggregation (Theorems 1 and 2) while the Hedging Pareto condition is equivalent to separate aggregation within the Savage framework (Theorem 3).
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