Using unique data sets on German banks, we decompose their net interest margin and quantify the different components by estimating the costs of the various functions they perform. We investigate three major functions: namely, liquidity and payment management for the customers, the bearing of...

Using granular data of German banks for the 2003 to 2018 period, we analyse the determinants of bank rates on retail deposits. We find that a bank's rate on sight deposits is especially low if the bank operates in rural districts, if it is not exposed to strong competition and if it provides...

Using granular data of German banks for the 2003 to 2018 period, we analyse the determinants of bank rates on retail deposits. We nd that a bank's rate on sight deposits is especially low if the bank operates in rural districts, if it is not exposed to strong competition and if it provides much...

We investigate German banks' exposure to interest rate risk. In finance, higher demand for a risky asset is typically associated with higher expected return. However, employing a utility function which implies both risk‐averse and risk‐seeking behavior depending on the level of profits, we...

To study bank behavior, we use tail events in the history of a bank's credit losses as a new type of shock to capital. When defined appropriately, such events are virtually unpredictable for bank managers and spread evenly over time and banks. We estimate from granular data of all German banks...

Using a unique data set on German banks' sector specific loan exposures to the real economy and the corresponding write-offs and write-downs, we examine the impact of loan portfolio sector concentration on credit risk. By controlling for common risk factors, we separate the bank-specific...