For globally systemically important banks (GSIBs) with US headquarters, we find significant reductions in market-implied probabilities of government bailout after the Global Financial Crisis (GFC), along with roughly 170 percent higher wholesale debt financing costs for these banks after controlling for insolvency risk. Since the GFC, bank creditors appear to expect much larger losses in the event that a GSIB approaches insolvency. In this sense, we estimate a decline of “too big to fail.” (G01, G12, G21, G28, G33, H81)

ABSTRACT Corporate credit lines are drawn more heavily when funding markets are stressed. This elevates expected bank funding costs. We show that credit supply is dampened by the associated debt‐overhang cost to bank shareholders. Until 2022, this impact was reduced by linking the interest paid on lines to a credit‐sensitive reference rate like the London interbank offered rate (LIBOR). We show that transition to risk‐free reference rates may exacerbate this friction. The adverse impact on credit supply is offset if drawdowns are expected to be deposited at the same bank, which happened at some of the largest banks during the global financial crisis and COVID recession.