This paper shows how crises prompted firms to switch borrowing across debt markets, impacting the amount borrowed, maturity, and currency denomination at the firm and aggregate levels. During financial crises, firms from advanced and emerging economies shifted their issuance activity between domestic and international syndicated loans and corporate bonds. Firms increased their borrowing in markets not directly hit by crises, partly compensating for declines in shock-hit markets, which provides evidence of market-specific credit supply shocks. As firms moved away from the markets in crisis and borrowed elsewhere, they maintained their borrowing maturity and changed their currency denomination. Changes occurred not only within firms, but also in the composition of issuing firms. The number of borrowing firms declined in crisis-hit markets and increased elsewhere. Mostly large firms issued during crises and switched markets. Overall, the debt dynamics obtained from studying jointly different debt markets differ from those observed in individual markets. (C) 2021 Published by Elsevier B.V.