We perform a general equilibrium analysis in a complete markets economy whenthe dividend follows a jump-diffusion process with stochastic volatility. Agents haveCRRA utility, but differ with respect to their degree of risk aversion. The keyoutput of our analysis is the structure of the...

We consider an exchange economy with two heterogeneous stocks and twogroups of investors. Dividends follow diusion processes, with a constant expectedgrowth rate for one stock and a stochastic drift for the other. 'Rationalinvestors' can either observe this stochastic drift without error or...

In this paper we perform a general equilibrium analysis when the dividend followsa jump-diffusion process with stochastic volatility, where both the dividend itselfand its volatility can jump. We work in a complete markets economy and assumethat agents have CRRA utility, but can differ with...

In this paper we study the equilibrium in a heterogeneous economy with twogroups of investors. Over-confident experts incorrectly assume that their signalfor the drift of the dividend process is correlated with the true drift, butinterpret the signal otherwise perfectly. Rational laymen avoid...

Since trading cannot take place continuously, the optimal portfolio calculated ina continuous-time model cannot be held, but the investor has to implement thecontinuous-time strategy in discrete time. This leads to the question how severe theresulting discretization error is. We analyze this...

Model mis-specification can cause substantial utility losses in portfolio planning.In this paper, we compare two approaches to cope with this problem,robust control and learning. We derive the optimal portfolio strategies and theutility losses due to model mis-specification. Surprisingly,...

The innovations of this paper are fourfold: First we study return differentials more comprehensivelythan in the previous literature by comparing three asset classes : money market instruments, bonds andequities across countries. Second, we document the structure of international portfolio...

We analyze the asset allocation decisions of different investor groups and investigate how their investmentbehavior changes with macroeconomic conditions. Using a new data set that includes themonthly portfolio holdings of private, commercial, and institutional investors deposited with...

Die ökonomische Sinnhaftigkeit der Forderung nach schwacher Wertadditivität vonSicherheitsäquivalenten ist in Abhängigkeit vom jeweiligen Bewertungszweck zu diskutieren.Hierbei muss grundsätzlich zwischen der unternehmensexternen Bewertungssichtund der unternehmensinternen Steuerungssicht...

Nicht nur der höchste berufsqualifizierende Abschluss – wie oft angenommen – sondern der gesamte Bildungspfad wirkt sich auf den Erfolg im weiteren Erwerbsleben aus. Im Projekt wird die individuelle Zusammensetzung von Bildungskarrieren und deren Auswirkungen im Erwerbsverlauf untersucht....