This paper models the strategic interaction between a rating agency, a bank and a bank regulator who lacks information about bank asset risk. The regulator can either (1) make bank capital requirements contingent on credit ratings; or (2) set rating-independent capital requirements. Truthful...

Die Bankenneuregulierung der Europäische Kommission sieht eine Beschränkung der Kreditvergabe im Interbankenmarkt auf 25 % des Eigenkapitals sowie einen Selbsteinbehalt des Originators in Höhe von 5 % am gesamten zu verbriefenden Forderungsportfolio vor. Eine starre Regulierung führt aber...

We study the efficiency of banking regulation under financial integration. Banks freely choose the jurisdiction where to locate their activities and have private information about their efficiency level. Regulators non-cooperatively offer any regulatory contract that satisfies information and...

This paper focuses on the consequences of cross-border banking and entry of multi-national banks (MNBs) for banking supervision and regulation. When a MNB expands internationally with subsidiaries, the MNB operates under the legislation of several countries - both the home country and the host...

We show how banks' excessive risk-taking, stemming from informational asymmetries in loan markets, can lead to an excessive output loss when a recession starts. Risk-based capital requirements can alleviate the output loss by reducing excessive risk-taking in ‘normal' times. Model simulations...

We show in a theoretical model that the introduction of the leverage ratio requirement, when it interacts with the risk-based IRB capital requirements, might lead to less lending to low-risk customers and to increased lending to high-risk customers. If such allocational effects are...

Regulators in developing countries may not have access to timely ex-post verifiable information regarding banks' capital or investment decision. This paper examines whether, in such an environment, regulators can enforce capital requirements. Using a model of a relationship between a regulator...

We study the effects on credit allocation and bank stability of introducing a leverage ratio requirement (LRR) on top of risk-based capital requirements, as in Basel III. For the current 3% LRR, both low-risk and high-risk loan rates and volumes remain essentially unchanged, because banks...

This paper studies bank regulation in the presence of deposit insurance, where banks have private information on their own ability and their investment strategy. Banks choose the mean and variance of their portfolio return. Regulators wish to control banks' risk choice, even though all agents...

Using banks' internal models for regulatory purposes, while aimed at making capital requirements more accurate, invites regulatory arbitrage. I show how the strategic use of risk models can be avoided by penalizing banks with low risk-weights when they suffer abnormal losses. As defaulting banks...