This dissertation studies the optimal regulatory response to financial crises. The first two chapters focus on prevention of financial crises, and the third chapter focuses on resolution of financial crises.Chapter 1 develops a quantitative theory of overborrowing based on a systemic risk...

Existing literature has focused attention on the impact of Basle I and similar capital requirement regulations on developed countries where such regulations were found to be effective in increasing capital ratios and reducing portfolio credit risk of commercial banks. In the present study, we...

Existing literature has focused attention on the impact of Basle I and similar capital requirement regulations on developed countries where such regulations were found to be effective in increasing capital ratios and reducing portfolio credit risk of commercial banks. In the present study, we...

Variabel verzinsliche Kundengeschäfte repräsentieren einen bedeutenden Teil der Aktiva und Passiva von Banken. Ihre Bewertung und Risikoanalyse ist sowohl für Banken als auch für die Bankenaufsicht anspruchsvoll, da insbesondere das Zusammenspiel zwischen Markt- und Produktzinsen sich als...

Diese Arbeit besteht aus drei, sich unabhängig voneinander erschließenden Artikeln,die sich alle mit dem Thema Risikomanagement in der Bankenindustrie befassen. Im ersten Artikel (Kapitel 2) werden die vier zur Zeit in der Praxis am häufigstenverwendeten Kreditrisikomodelle analysiert. Fokus...

This paper discusses the relationship between premia for macroeconomic risk in banking, aggregate behavior, and banking crises. We consider a competitive banking system embedded in an overlapping generation model subject to repeated macroeconomic shocks. We highlight how risk premia decline when...

This paper studies the question to what extent premia for macroeconomic risks in banking are sufficient to avoid banking crises. We investigate a competitive banking system embedded in an overlapping generation model subject to repeated macroeconomic shocks. We show that even if banks fully...

We explore the impact of sophistication in risk management as required by Basel II on banking stability and market conditions. We compare a competitive banking system in which only average ratings are available with a competitive system in which banks are able to assess the default risk of...

We investigate the question of whether sophistication in risk management fosters banking stability. We compare a simple banking system in which an average rating is used with a sophisticated banking system in which banks are able to assess the default risk of entrepreneurs individually. Both...

This paper provides a macroeconomic perspective for government interventions in banking crises. We illustrate how vulnerabilities of the banking sector may build up over time and thus destabilize a banking system. A crisis occurs when a large number of banks fail to meet capital requirements or...