Subjective Evaluations: Discretionary Bonuses and Feedback Credibility
研究了企业为何使用自由裁量奖金：当员工与企业的匹配质量未知且评价主观时，奖金能使企业反馈更可信，从而减少好匹配员工接受外部工作机会的倾向。
We provide a new rationale for the use of discretionary bonuses. In a setting with unknown match qualities between a worker and a firm and subjective evaluations by the principal, bonuses are useful in order to make the feedback from the firm to the workers credible. This way workers in good matches are less inclined to accept outside offers.