The transformation of credit scores into probabilities of default plays an important role in credit risk estimation. The linear logistic regression has developed into a standard calibration approach in the banking sector. With the advent of machine learning techniques in the discriminatory phase...

In this paper we introduce two measures, the Systemic Liquidity Buffer (SLB) and the Systemic Liquidity Shortfall (SLS) to assess liquidity in the banking system. The SLB takes an aggregated perspective on liquidity risks in the banking system. In contrast, the SLS focusses on the problematic...

Cyber attacks can impair banks operations and precipitate bank runs. When digital infrastructure is shared, banks defend themselves by investing in cybersecurity but can free-ride on the security measures of others. Ex ante free-riding by banks interacts with the ex post coordination frictions...

We analyze the problem of a policy authority (PA) that must decide when to resolve a troubled bank whose underlying solvency is uncertain. Delaying resolution increases the chance that information arrives that reveals the bank's true solvency state. However, delaying resolution also gives...

We study the effects of interest rate shocks (IRS) on banks' liquidity creation. A unique supervisory data set from the Deutsche Bundesbank allows identifying banks' liquidity creation for the real economy and the effects of banking market competition. Here, we employ a novel approach to account...

This paper studies how banks' balance sheets and funding costs interact in the transmission of monetary-policy rates to banks' credit supply to firms. To do so, we use credit-registry data from Germany and Portugal together with the European Central Bank's policy-rate cuts in mid-2014. The...

This paper provides evidence of deliberate private-information disclosure within banks' international business networks. Using supervisory trade-level data, we show that banks with closer ties to a target advisor in a takeover buy more stocks of the target firm prior to the deal announcement,...

We investigate whether idiosyncratic interbank funding shocks affecting a bank headquarters can trigger a liquidity hoarding reaction by their regional branches. Shock-affected branches of Brazilian banks increase liquid assets and cut lending in the shocks' aftermath compared to non-affected...

This paper deals with both system-wide and banks' internal stress tests. For system-wide stress tests it describes the evolution over time, compares the stress test design in major jurisdictions, and discusses academic research. System-wide stress tests have gained in importance and nowadays...

Excessive household borrowing has been identified as an important determinant of financial crises. Borrower-based macroprudential instruments have been proposed as a possible remedy. In Germany, two instruments have been available to macroprudential supervisors since 2017: a cap on the...