Common Knowledge of an Aggregate of Expectations
给出一个定理，说明在什么条件下公开观察个体期望的总和会导致共识，核心概念是Aumann（1976）形式化的共同知识。
We provide a theorem giving a set of conditions under which public observation of an aggregate of individual expectations leads to consensus. The key concept unkerlying the result is that of common knowledge, as formalized by Aumann (1976)