Something to prove: reputation in teams
解释为何个人在年轻时为自己声誉工作、年老时为团队声誉工作，通过雇佣声誉不确定的年轻人，年长者获得努力激励，从而说明团队工作的选择。
Agents work for their own reputations when young but for their firms' when old. An individual with an established reputation cannot credibly commit to exerting effort when working alone. However, by hiring and working with juniors of uncertain reputation, seniors will have incentives to exert effort. Incentives for young agents arise from a concern for their own reputation (and the opportunity to take over the firm), whereas older agents work for the reputation of their firms (and the opportunity to sell out to juniors). Thus, the article explains the choice to work in teams. It also exemplifies how type uncertainty in reputation models may be endogenously and strategically introduced.