In the standard CAPM with a riskless asset we give a sufficient condition for uniqueness. This condition is a joint restriction on the agents' endowments and their preferences which is compatible with non-increasing absolute risk aversion and which is in particularsatisfied with constant...

Vor mehr als einer Dekade hat das Institut der Wirtschaftsprüfer beschlossen, bei einerUnternehmensbewertung die Einbeziehung von Ertragsteuern grundsätzlich zuempfehlen.1 Seitdem hat die Diskussion über den Einfluss einer Besteuerung der Anteilseignerauf den Marktwert eines Unternehmens...

A simple counterexample shows the the widely used WACC approach to value leverage firms developed by Miles and Ezzell can create an arbitrage opportunity. The only consequence to be drawn is that their WACC approach cannot be applied under the circumstances assumed by Miles and Ezzell.

In capital budgeting problems future cash flows are discounted using the expected one period returns of the investment. In this paper we establish a theory that relates this approach to the assumption that markets are free of arbitrage. Our goal is to uncover implicit assumptions on the set of...

We analyze a general business tax in an uncertain economy. Our tax system allows for a time-dependent tax rate and to this end we incorporate a generalized allowance for corporate equity (ACE). The generalized allowance is given by a fraction of the product of interest rate and book value of the...

Will man den Einfluss der Einkommensteuer auf den Wert eines Projektes oder eines Unternehmens bestimmen, so bietet sich das Standardmodell als eines der populärsten Modelle an. Bei diesem Modell werden insbesondere im Nenner die Kapitalkosten um den Faktor 1 - gekürzt, wobei den Steuersatz...

We analyze optimal income taxes with deductions for work-related or consumptive goods. We consider two cases. In the first case (called a complex tax system) the tax authorities can exactly distinguish between consumptive and work-related expenditures. In the second case (called a simple tax...

In der Literatur ist seit langem bekannt, wie man Ertragsteuern in die Unternehmensbewertung einzubeziehen hat. In dieser Arbeit klären wir, wie man ein Unternehmen bewertet, dessen Eigentümer eine Erbschaftund Schenkungsteuer zu leisten haben.

We look at the theory of arbitrage with taxation under certainty. The tax scale in our model is not linear. Under the premise that tax scale is convex, we analyze prices that do not exhibit arbitrage opportunities. It turns out that there are two kinds of arbitrage: unbounded as well as bounded...

Risk aversion in game theory is usually modeled using expected utility, which was criticized early on, leading to an extensive literature on generalized expected utility. In this paper we are the first to apply μ-σ theory to the analysis of (static) games. μ-σ theory is widely...