建立在行为经济学理论基础上的委托-代理模型:物质效用与动机公平的替代

本文通过将Rabin(1993)提出的同时考虑了物质效用和"动机公平"的效用函数植入现有的委托代理模型,获得一个代理人表现出"互惠性"非理性行为的新委托代理模型。由该模型给出来的最优委托代理合约在一定条件下可以给委托人带来比现有委托代理最优合约更高的利润水平。该研究改进和完善了蒲勇健(2007)的结果。与蒲勇健(2007)的研究相比,我们发现在同时考虑了物质效用和"动机公平"的情况下,非理性代理人的行为更加复杂,他会在公平与自利之间寻求平衡。数值模拟的结果表明,模型一般会存在解。

A PRINCIPAL-AGENT MODEL WITH FAIRNESS

This paper develops a new principal-agent model in which the agent behaves both on rationality and a notion of fairness centered at reciprocity.A distinct feature of the model is that under many circumstances,the optimal contract provides a higher profit than what would be obtained when the agent behaves only on rationality.