Under the Single Supervisory Mechanism (SSM) introduced in 2014, the European Central Bank directly supervises significant euro area banks, which hold about 82% of total banking assets. We find that this important supervisory change has positive effects on the return on assets and the return on...

Under the Single Supervisory Mechanism (SSM), introduced in 2014, systemically important euro area banks with combined assets of about 21,000 billion euros are directly supervised by the ECB. We examine from a static and a dynamic perspective how this fundamental shift to unified supervision...

We develop and solve a dynamic optimization model of a bank's balance sheet, highlighting the critical factors influencing banks' optimization dynamics: balance sheet adjustment costs and the spreads between bank-specific lending and deposit rates and the interbank rate. We apply the model to...