日益激烈的供应链竞争成为业界常态并备受关注，但鲜有学者探讨企业如何建立并维持供应商-客户关系，尤其缺乏基于文化视角的理论建构与经验证据。而作为影响个体信念和偏好的基础性因素，文化的重要性毋容置疑。本项目基于手工整理的上市公司供应链及各地文化特征数据，研究地区/地区间文化认同如何影响供应商/客户关系。具体而言：①以基因距离和方言互通性识别文化认同，考察其是否影响企业与异地供应商/客户建立关系；②区分资金协同和信息共享机制，检验文化认同是否有助于企业维持供应商-客户关系、防范断裂风险；③研究文化认同如何影响供应链治理结构及其实际效果。得益于我国特色鲜明地域文化和上市公司供应链信息披露的独特数据，项目将文化纳入供应链理论框架并为此提供经验证据，拓展文化认同与企业供应链的交叉学科研究，有助于企业管理层加深对文化认同的认识并提高决策效率，对政府加快文化认同建设、发展现代供应链也有重要启示。

In spite of the widespread perception on the increasing competition between supply chains, relatively little work has been done to how firms build and maintain their relationships with suppliers and customers. Moreover, in spite of the influence of culture on people’s preferences and beliefs has been widely confirmed, there is almost no evidence on whether cultural identity affect customer-supplier relationships. Taking advantage of the unique data on Chinese listed companies’ information about suppliers and customers, we investigate the impact of cultural identity on firms’ supply chain. In particular, this project aims to examine the following three specific questions. 1. How cultural identity, which measured by gene distance and linguistic distances, affect the geographical distribution between firms and their suppliers and customers? 2. Whether cultural identity contributes to reduce firms’ financial constrain and information friction, which will be helpful for firms to maintain their relationships between suppliers and customers and therefore reduce their disruption risk? 3. How cultural identity affect supply chain governance structure and its real effects? Our research will provide empirical evidence for the impact of cultural identity on customer-supplier relationships, which are informative for managers to understand the effect of culture on the practices of firms’ relationship between their suppliers and customers. Moreover, these results will provide guidance to the government in the aspect of the construction of cultural identity and developing modern supply chains.