How does the environment of an organization inuence whether workersvoluntarily provide eort? We study the power relationship betweena non-prot unit (e.g. university department, NGO, healthtrust), where workers care about the result of their work, and a bu-reaucrat, who supplies some input to the...

We propose a new dynamic model for volatility and dependence in high dimensions, that allows for departuresfrom the normal distribution, both in the marginals and in the dependence. The dependence is modeled with adynamic canonical vine copula, which can be decomposed into a cascade of bivariate...

We study probabilities which determine the payo of barrier options:the probability that an asset hits a barrier before maturity, theprobability that the asset is below the barrier at maturity, and theratio of both probabilities. The correct estimation of these probabilitieshas crucial eects on...

In this paper we study the short term price behavior of December 2008 future prices for EU emissionallowances. We model returns and volatility dynamics of this price showing that a standard ARMA-GARCHframework is not adequate and that the gaussianity assumption is rejected due to the occurrence...

While stochastic volatility models improve on the option pricing error when compared to theBlack-Scholes-Merton model, mispricings remain. This paper uses mixed normalheteroskedasticity models to price options. Our model allows for significant negative skewnessand time varying higher order...

We propose an empirical approach to determine the various economic sourcesdriving the US yield curve. We allow the conditional dynamics of the yield at differ-ent maturities to change in reaction to past information coming from several relevantpredictor variables. We consider both endogenous,...

This article studies the e¤ect of limited commitment on stock return volatility in a dynamicgeneral equilibrium economy populated by investors with heterogeneous beliefs. Due to het-erogeneity of beliefs investors disagree about the fundamentals, introducing an additional riskfactor denoted...

Die vorliegende Arbeit untersucht Tests auf stochastische Dominanz, welche ein grundlegendes Konzept der Entscheidungstheorie ist. Hierbei konzentrieren wir uns auf stochastische Dominanz erster und zweiter Ordnung. Diese sind die beiden wichtigsten Entscheidungsregeln und finden Anwendung in...