Following the Global Crisis, countries have significantly increased their efforts to cooperate on bank supervision, the prime example being the euro area’s Single Supervisory Mechanism. However, little is known about whether such cooperation helps improve the stability of the financial system. Using panel data for a large sample of cross-border banks, this column examines whether a higher incidence of supervisory cooperation is associated with higher bank stability. It finds that supervisory cooperation is effective, working through asset risk, but not for very large banks, which are the ones that pose the highest risk to financial stability.
Thorsten Beck, Consuelo Silva-Buston, Wolf Wagner