Middlemen as Experts
证明在存在逆向选择的一般讨价还价模型中，中间商在所有均衡中都能提高福利，并分析了中间商最可能出现的市场条件。
I show that a middleman can be welfare improving in all equilibria in a quite general bargaining model when adverse selection is present. Conditions are determined for when a middleman is most likely to be in a market. Examples of the theory are also presented.