LAUSR

Abstract This paper investigates the impact of social trust on a firm's adjustment speed toward an optimal capital structure. Leveraging the availability of generalized trust and personalized trust metrics in China, we find that, as expected, when a firm is located in a high social trust region (with either generalized or personalized trust), it adjusts more quickly toward its target capital structure. Moreover, we document that the impact of generalized trust (personalized trust) on the adjustment speed is magnified if the firm already had stringent financial constraints (less-severe agency problems) but it is not related to the severity of a firm's agency problems (financial constraints). Additional analysis suggests that the impact of social trust on capital structure dynamics is primarily through debt rather than equity. Furthermore, we find that when a firm is located in a weak formal institutional environment, the impact of generalized trust on the adjustment speed strengthens, suggesting that formal institutions and generalized trust are partial substitutes. Interestingly, the substitution effect of formal institutions and personalized trust is weak. Hence, the impact of generalized trust and personalized trust on capital structure adjustment share some similarities but differ in other respects.