Due to their underlying assumptions, the standard concepts of risk aversion and preference for the present are generally defined separately and represented by scalar measures, and this implies many shortcomings. More specifically, if measured by a scalar, the risk aversion remains unchanged,...

We consider a dynamic general equilibrium model with incomplete markets in which we derive conditions for separating the savings decision from the asset allocation decision. It is shown that with logarithmic utility functions this separation holds for any heterogeneity of discount factors while...

In the standard real options approach to investment under uncertainty, agents formulate optimal policies under the assumptions of risk neutrality or perfect capital markets. However in most situations, corporate executives face incomplete markets either because they receive compensation packages...

In diesem Beitrag werden alternative Koordinationsformen im Qualitätsmanagement von Unternehmen analysiert. Dabei steht die Beantwortung der Frage im Vordergrund, ob Maßnahmen zur Erfüllung von Qualitätsanforderungen im Unternehmen oder von externen Partnern durchgeführt werden sollen.

Im Unterschied zu leasingspezifischen Abhandlungen unter Betonung praxisorientierter Fragestellungen, die insbesondere auf geschäftspolitische Untersuchungsgegenstände fokussieren, stellen die folgenden Ausführungen einen Beitrag zur Analyse von Leasing-transaktionen aus der Perspektive der...

This paper deals with the superhedging of derivatives on incomplete markets, i.e.with portfolio strategies which generate payoffs at least as high as that of a givencontingent claim. The simplest solution to this problem is in many cases a staticsuperhedge, i.e. a buy-and-hold strategy...

We show the incentive for divisionalization by a monopolist producer. Incontrast to the previous literature, where divisionalization occurs for product marketadvantage, we show that divisionalization occurs if it provides strategic advantage inthe labor market. With unionized labor market, we...

We develop a method that allows one to compute incomplete-market equilibria routinely forMarkovian equilibria (when they exist). The main difficulty to be overcome arises from the setof state variables. There are, of course, exogenous state variables driving the economy but, in anincomplete...

We prove that for any incomplete market and any concave utilityfunction the marginal propensities to consume and to save are alwayspositive. Furthermore, we introduce a class of incomplete markets thatincludes almost all well known examples of market incompleteness infinance and macroeconomics....

Derivative financial instruments are frequently used as a tool for influencing the risk ofentrepreneurial uncertain payoff. To this end, an approximation procedure is developed capable ofcalculating the optimal quantity of derivatives to be used. It is assumed that the entrepreneurial cashflow...