Exploiting the introduction of the ECB's tiering system for remunerating excess reserve holdings, we document the importance of access to the money market for bank lending. We show that the two-tier system produced positive wealth effects for banks with excess reserves and encouraged a...

In this paper, we survey the nascent literature on the transmission of negative policy rates. We discuss the theory of how the transmission depends on bank balance sheets, and how this changes once policy rates become negative. We review the growing evidence that negative policy rates are...

We study the impact of increasingly negative central bank policy rates on banks' propensity to become undercapitalized in a financial crisis ('SRisk'). We find that the risk impact of negative rates is moderate, and depends on banks' business models: Banks with diversified income streams are...