This thesis is mainly to analyze cooperation for each business enterprise in supply chain from the information dissymmetry,the morals risk and contrary choose three aspect,in order to attain a purp.

• 本文主要从信息经济学中的信息不对称、道德风险和逆向选择三方面来分析供应链中各企业之间应如何协调,以达到各方都赢的目的。