This paper examines capital adequacy regulation in Germany. After a short overview about financial regulation in Germany in general, the paper focuses on the most important development in the area of capital adequacy regulation from the 1930s up to the financial crisis. Two main trends are...

We introduce a model of the banking sector that formally incorporate a buffer function of capital. Heterogeneous banks choose their portfolio risk, bank size, and capital holdings. Banks voluntarily hold equity when the buffer effect against the risk of default outweighs the cost advantages of...

The paper evaluates the impact of a phased-in introduction of capital requirements on equity, risk-taking, and probability of default for a sample of European systemically important banks. Contrary to the case of a one-off introduction of capital requirements, this study does not find evidence...