portfolio, one for market risk and one for credit risk. Similar approaches are common in banks’ internal models for economic … capital. Although it is known that joint market and credit risk of certain investments can be larger than the sum of risks … holdings or CDS portfolios – are also affected. There are realistic conditions under which credit risk (represented by ratings …

Our paper addresses firm size as a driver of systematic credit risk in loans to small and medium enterprises (SMEs …). Key contributions are the use of a unique data set of SME lending by over 400 German banks and relating systematic risk to … systematic risk from historical default rates. Our results suggest that systematic risk tends to increase with firm size …

real economic activity growth, in line with a risk shock. Conversely, a certainty shock (a shock strongly decreasing …

The Value at Risk approach (VaR) is more and more used as a tool for risk measurement. The approach however has … shortcomings both from a theoretical and a practical point of view. VaR can be classified within existing concepts of risk … measurement: it is particularly interpretable as a special measure of shortfall risk. From that point of view VaR will be extended …

liquidation costs. In particular, in our model ambiguity aversion is observationally equivalent to increased risk aversion. This …