Die Studie untersucht Determinanten der Studiendauer und der Endnote von Kölner Studierenden im wirtschaftswissenschaftlichen Grundstudium auf Grund einer Auswertung der Prüfungsdaten. Die Ergebnisse führen zu Empfehlungen für den individuellen Aufbau des Studiums und die Konzeption...

Diese Studie untersucht Determinanten der Studiendauer und der Endnote von Kölner Studierenden im wirtschaftswissenschaftlichen Hauptstudium auf Grund einer Auswertung der Prüfungsdaten. Sie setzt eine entsprechende Studie über das Grundstudium (Mosler und Savine, 2004) fort. Die Ergebnisse...

Nonlinear autoregressive Markov regime-switching models are intuitive and frequently proposed time series approaches for the modelling of electricity spot prices. In this paper such models are compared to an ordinary linear autoregressive model with regard to their forecast performance. The...

Compared with the broad supply of literature measuring socioeconomic gradients in the distribution of health, only little is know about the life course perspective regarding income related inequalities. This article combines the reowned concentration index approach with semiparametric estimation...

Trimmed regions are a powerful tool of multivariate data analysis. They describe a probability distribution in Euclidean d-space regarding location, dispersion, and shape, and they order multivariate data with respect to their centrality. Dyckerhoff and Mosler (201x) have introduced the class of...

The Gini index and the Gini mean difference of a univariate distribution are extended to measure the disparity of a general d-variate distribution. We propose and investigate two approaches, one based on the distance of the distribution from itself, the other on the volume of a convex set in (d...

The paper presents an approach to the measurement of economic disparity in several commodities. We introduce a special view on the usual Lorenz curve and extend this view to the multivariate situation: Given a vector of shares of the total endowments in each commodity, the multivariate inverse...

The empirical power of several test procedures is studied which test for homogeneity against mixtures of exponential distributions.

We consider four orthant stochastic orderings between random vectors X and Y that have finitely discrete probability distributions in IRk. For each of the orderings conditions have been developed that are necessary and sufficient for dominance of Y over X. We present an algorithm that checks...

Linear optimization problems are investigated whose parameters are uncertain. We apply coherent distortion risk measures to capture the violation of restrictions. Such a model turns out to be appropriate for many applications and, principally, for the mean-risk portfolio selection problem. Each...