The effect of suppliers' corporate social responsibility concerns on customers' stock price crash risk

We investigate the spillover effect of corporate social responsibility (CSR) concerns along the supply chain. We propose an information incorporation effect for whether suppliers' CSR concerns affect customers' stock price crash risk. Customers' investors can incorporate information about suppliers' CSR into stock price valuations, lowering the probability of abrupt stock price crashes. Our findings support the information incorporation effect. Suppliers' CSR concerns are negatively associated with customers' stock price crash risk. The negative relationship is more pronounced for firms with high media coverage, negative media sentiment, high investor attention, negative investor sentiment, low trade policy uncertainty, and low political uncertainty. Moreover, we rule out the alternative explanation that suppliers' CSR strengths dominate the effect. Our main finding is supported by change analysis and robustness tests, including an alternative measure test.