政府集中采购是政府采购最重要的一个组成部分,集中采购对于实现政府采购的高层次优化管理的作用是无可置疑的。近两年来,在加强政府采购管理机构建设的同时,各地区均设立了政府集中采购机构(采购中心),负责组织实施本级政府纳入集中采购目录范围的采购事物。但在政府集中采购中,采购人和集中采购机构之间形成一种委托代理关系,双方实际上存在不同的利益取向,在信息不完全和契约不完善的条件下,必然产生委 Government centralized purchasing is the most important part of government procurement. The role of centralized procurement in high-level and optimized management of government procurement is beyond doubt. In the past two years, while strengthening the construction of government procurement management institutions, all regions have set up centralized purchasing agencies (purchasing centers) for the government to take charge of organizing and implementing the procurement items that the local governments have incorporated into the catalog of centralized purchasing. However, in centralized government procurement, there is a kind of principal-agent relationship between the purchaser and the centralized purchasing agency. In fact, the two parties have different interests. Under the condition of incomplete information and imperfect contract,