Because of the principal-agent relationship between the owner and the manager in modem enterprise, how to prevent the manager from opportunism behaviors is a crucial aspect in enterprise management with asymmetric information.

• 摘要现代企业的所有者和经理人之间是委托代理关系，如何防止信息不对称条件下经理人的机会主义行为是企业管理需要解决的重要问题。