The prospect theory is one of the most popular decision-making theories. It is based on the S-shaped utility function, unlike the von Neumann and Morgenstern (NM) theory, which is based on the concave utility function. The S-shape brings in mathematical challenges: simple extensions and...

Wir untersuchen für ein internationales Unternehmen das Zusammenwirken von finanz- und realwirtschaftlichem Risikomanagement. Dies geschieht auf der Grundlage eines intertemporalen, stochastischen Entscheidungsmodells. Die gemeinsame Betrachtung von Devisen-Futures und Lagerhaltung bestätigt...

The mainstream model of option pricing is based on an exogenously given process of price movements. The implication of this assumption is that price movements are not affected by actions of market participants. However, if we assume that there are indeed impacts on the price movements it no...

This paper examines the interplay between the real and financial decisions of the competitive firm under output price uncertainty. The firm faces additional sources of uncertainty that are aggregated into a background risk. We show that the firm always chooses its optimal debt-equity ratio to...

We present a model of risk averse exporting firm subject to liquidity constraints. The firm enters an unbiased futuresmarket to hedge exchange rate risk and may not be able to satisfy high margin calls. Then the firm is forced toprematurely liquidate the futures position. We show that...

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...

Die vorliegende Arbeit untersucht ein Duopol bei unsicherer Nachfrage unter Risikoaversion. Die Produktion der gesamten Industrie fällt durch die Einführung von Nachfrageunsicherheit; der Marktpreis steigt wegen des schwächeren Wettbewerbs. Damit ist die Veränderung des Gewinns und des...

International joint ventures (JV) are popular institutional forms chosen by the less developed countries (LDCs) to attract foreign Investments. In this paper we describe a set up where a multinational firm (MNF) decides on the volume of investment and the LDC gov-ernment offers a package...

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.