We examine how Confucian culture operates as an informal institution by fostering relational contracts that substitute for formal legal frameworks in shaping corporate behavior. Using data on historical Confucian academies near firms’ headquarters in China, we find that greater cultural exposure is associated with higher investment in stakeholder relationships—measured by social contribution, stakeholder protection, courtesy expenses, patenting, and trade credit. These effects persist after controlling for human capital and alternative cultural influences, and weaken in regions with stronger formal institutions. Our findings highlight the enduring role of culture in supporting trust-based governance when formal contracting is limited.

Corporate customers are an important stakeholder in global supply chains. We employ several unique international databases to test whether socially responsible corporate customers can infuse similar socially responsible business behavior in suppliers. Our findings suggest a unilateral effect on corporate social responsibility (CSR) only from customers to suppliers, an evidence further supported by exogenous variation in customers’ close-call CSR proposals and by product scandals. Customers exert influence on suppliers’ CSR through positive assortative matching and their decision-making process. Enhanced collaborative CSR efforts help improve operational efficiency and firm valuation of both customers and suppliers but increase only the customers’ future sales growth.