We examine the effect of credit default swaps (CDSs) on debt specialization. We argue that reference firms in CDS contracts, seeking to minimize creditor conflicts and bankruptcy costs, exhibit higher debt concentration than firms on which no CDSs are traded. Our results show that firms engage in greater debt specialization and are more likely to specialize following the inception of CDS trading. Additionally, we find that, while lender concentration in firms increases, the number of bank lenders drops, lead arranger share rises, and the probability that lead arrangers and lenders are repeated increases following the onset of CDS trading. Our results are robust to instrumental variable estimation, propensity-score matching, different model specifications, and different subsamples.

Using Roberts (2015) loan-level data from 2000 to 2011, we find that the inception of CDS trading on reference firms’ debt is associated with a decreased number and lower probability of amendments, restatements, and rollovers to existing lenders of bank loans. Reference firms are also less likely to terminate loans prematurely or refinance with different lenders after the inception of CDS trading and tend to exhibit longer loan maturities. Our evidence is consistent with the empty creditor problem arising from CDS trading and the resulting decrease in the negotiation power of borrowers. Our research contributes to understanding how financial innovations alter bank-lending relationships.