When corporations make an effort to be socially responsible beyond what is required by the law, this effort is often described as strategic—made mainly for the shareholders’ or managers’ benefit. A large body of literature corroborates this belief. But, could the incentives for corporate social responsibility (CSR) come from an altruistic inclination fostered by the social capital of the region in which the firm is headquartered? We investigate whether this phenomenon exists by examining the association between the social capital in the region and the firm’s CSR. We find that a firm from a high social capital region exhibits higher CSR. This result suggests that the self-interest of shareholders or mangers does not explain all of the firm’s CSR, but the altruistic inclination from the region might also play a role.

We examine the impact of social capital on audit fees. We find that firms headquartered in U.S. counties with high social capital pay lower audit fees. Social capital measures the level of mutual trust in a region. Our results suggest that auditors judge the trustworthiness of their clients based on where the firm is headquartered and charge a premium when they trust the firm less. The basis of our results is the examination of more than 28,000 audit fees for more than 5,000 firms spanning the period of 2000 to 2009. The results are robust to controlling for a large number of firm-level and county-level characteristics.