In this paper we consider the optimal stopping problem for general dynamic monetary utility functionals. Sufficient conditions for the Bellman principle and the existence of optimal stopping times are provided. Particular attention is payed to representations which allow for a numerical...

Das Geschäft mit Derivaten und strukturierten Finanzprodukten ist verstärkter Kritik ausgesetzt. Ziel des Aufsatzes ist die kritische Auseinandersetzung mit den Thesen der Kritiker und der Rolle der Bank bei den genannten Geschäften.

Cross currency swaps are powerful instruments to transfer assets or liabilities from one currency into another. The market charges for this a liquidity premium, the cross currency basis spread, which should be taken into account by the valuation methodology. We describe and compare two valuation...

In this paper we explain how to use rating histories provided by the internal scoring systems of banks and by rating agencies in order to predict the future risk of a set of borrowers. The method is developed following the steps suggested by the Basle Committee. To introduce both migration...