Preference Aggregation With Incomplete Information
在不完全信息环境中，仅当帕累托优势是共同知识时才应用单调性和帕累托原则，这要求存在一个共同先验且加总必须是事前和事后功利主义的。
We show in an environment of incomplete information that monotonicity and the Pareto property applied only when there is common knowledge of Pareto dominance imply (i) there must exist a common prior over the smallest common knowledge event, and (ii) aggregation must be ex ante and ex post utilitarian with respect to that common prior and individual von Neumann–Morgenstern utility indices.