Economic cycles are the key credit portfolio risk driver and they are autocorrelated over time. We then show that it is economically meaningful to define risk for credit portfolios in a multi period setup. Since one period expected shortfall fails to measure risk adequately in a multi period...

n this paper we analyse recovery rates on defaulted bonds using the Standard and Poors / PMD database for the years 1981-1999. Due to the specific nature of the data (observations lie within 0 and 1), we must rely on nonstandard econometric techniques. The recovery rate density is estimated...

We propose a simple and implementable model of credit contagion where we in-clude macro- and microstructural dependencies among the debtors within a creditportfolio. We show that, even for diversified portfolios, moderate microstructuraldependencies have already a significant impact on the tails...

Credit limit management is of paramount importance for successful short-term credit-risk management, even more so when the situation in credit and financial markets is tense. We consider a continuous-time model where the credit provider and the credit taker interact within a game-theoretic...

We introduce an adaptive importance sampling method for the loss distribution of credit portfolios based on the Robbins-Monro stochastic approximation procedure. After presenting the subtle construction of the algorithm, we apply our adaptive scheme for calculating the risk figures of a typical...

This paper studies the short- and long-run announcement effects of declaring compliance with the German Corporate Governance Code (the Code). We examine a unique, hand-collected data set of 317 German listed firms from 2002-2005. First, we present evidence from an analysis of firms compliance...

Recent empirical work shows that a better legal environment leads to lowerexpected rates of return in an international cross-section of countries. Thispaper investigates whether differences in firm-specific corporate governancealso help to explain expected returns in a cross-section of firms...

Die aktuelle Corporate Governance Literatur stützt die verbreitete Hypothe-se, dass sicht „gute“ Corporate Governance durch eine höhere Unterneh-mensbewertung manifestiert. Die Mehrzahl der empirischen Studien unter-sucht jedoch nur ausgewählte Corporate Governance Mechanismen...

Using a comprehensive set of listed Swiss companies, our findings suggestthat the size of the board of directors is an independent control mechanism.However, in contrast to previous studies, we do not find a significant rela-tionship between board size and firm performance. This suggests that...