供应链企业之间产生物流、信息流和资金流的原因在于其成员企业相互之间签订的契约。从某种意义上来说,供应链上的物流和资金流是成员企业之间签订的“契约”执行过程和结果的一种体现。更进一步,选择某个供应商或某个顾客签订契约,其原因在于相互之间的信任。也就是说,信任是供应链节点企业合作关系建立的基础。而信任建立在对相关信息进行收集和整理的基础上。企业内部股东、债权人、管理者和员工等利益相关者之间也一样。因此,笔者认为,供应链表面上通过物流、信 Supply chain logistics between enterprises, information flow and capital flow is due to the contract between their member companies signed. In a sense, the logistics and capital flow in the supply chain are an embodiment of the “contract” implementation process and the results signed among member companies. Further, the reason for choosing a supplier or a customer to sign a contract is mutual trust. In other words, trust is the foundation for the establishment of cooperative relationship between supply chain nodes. Trust is based on the collection and collation of relevant information. The same applies to stakeholders such as corporate shareholders, creditors, managers and employees. Therefore, I believe that the supply chain on the surface through logistics, letter