Zur Vorteilhaftigkeit des Hedgings für Banken In einem einfach gehaltenen Bankmodell untersucht unser Beitrag das Futures-Hedging einer kompetitiven Bank, die sich Risiken im Aktivgeschäft ausgesetzt sieht. Folgende Aspekte werden herausgearbeitet: Zunächst erfolgt die Analyse der...

The paper focusses on currency options as financial hedging instrumenta. Since currency forwards imply the well-known Separation result, it follows for arbitragefree hedging markets that Separation must also hold in option markets if the traded options allow for con-structing a synthetical...

Based upon the foundations of mean-variance decision-making theory, we demonstrate that a change in the risk situation of an international enterprise open currency position does not inevitably require a corresponding hedging accommodation. Given a new risk situation, whether a revision of the...

We study the implications of the value at risk concept for the bank's optimum amount of equity capital under credit risk. The market value of loans is risky and lognormally distributed. We show that the required equity capital depends upon managerial and market factors. Furthermore, the bank's...

We derive a class of utility functions that are equivalent with respect to a well-defined functional form. We apply a general view of constant relative risk aversion to investigate on different equivalence relations. Then we compare our results with standard applications in economics and finance.

This paper presents a model of a competitive risk-averse exporting firm under exchange rate risk. We show that export and hedging decisions can be separated if futures and currency options are available. A full hedge of uncertain export revenue occurs if the futures market is unbiased and the...

We study the impact of exchange rate risk on an exporting firm in a developing country when there is no forward market in the foreign currency. However there exists a forward traded asset in this country the price of which is highly correlated to the foreign currency. By indirectly hedging its...