This paper studies optimal bank capital requirements in a model of endogenous bank funding conditions. I find that requirements should be higher during good times such that a macroprudential "buffer" is provided. However, whether banks can use buffers to maintain lending during a financial...

In this paper, we analyze the role bank capital played in systemic banking crises and in lending expansion and contraction for nearly 150 years in Spain. We first build a measure of capital ratio (i.e., the capital to assets ratio) for Spain's banking sector, starting in 1880. Then, we analyze...

During the last decade, property prices in Germany steadily appreciated and reached an all-time high in 2022. In the wake of the global financial crisis that was triggered by a housing market bubble in the U.S., banking authorities introduced an additional systemic risk buffer. This buffer aims...

This paper presents a new dataset on the dynamics of non-performing loans (NPLs) during 88 banking crises since 1990. The data show similarities across crises during NPL build-ups but less so during NPL resolutions. We find a close relationship between NPL problems-elevated and unresolved...

Business cycles imply liquidity risks for banks. This paper explores how these risks influence bank lending over the cycle. With forward-looking banks, lending cycles, credit booms and busts, or suppressed and highly fragile bank systems can emerge, depending on the magnitude of liquidity risks....

A bank's decision on loan supply and capital structure determines its immediate bankruptcy risk as well as the future availability of internal funds. These internal funds in turn determine a bank's future costs of external finance and future vulnerability to bankruptcy risks. We study these...

The recent financial crises pointed out the central role of public and private debt in modern economies. However, even if debt is a recurring topic in discussions about the current economic situation, economic modelling does not take into account debt as one of the crucial determinants of...

The recent financial crises pointed out the central role of public and private debt in modern economies. However, even if debt is a recurring topic in discussions about the current economic situation, economic modelling does not take into account debt as one of the crucial determinants of...

The recent financial crises pointed out the central role of public and private debt in modern economies. However, even if debt is a recurring topic in discussions about the current economic situation, economic modeling does not take into account debt as one of the crucial determinants of...