By means of wavelet transform a time series can be decomposed into a time dependent sum of frequency components. As a result we are able to capture seasonalities with time-varying period and intensity, which nourishes the belief that incorporating the wavelet transform in existing forecasting...

Since the pioneering work of Embrechts and co-authors in 1999, copula models enjoy steadily increasing popularity in finance. Whereas copulas are well-studied in the bivariate case, the higher-dimensional case still offers several open issues and it is by far not clear how to construct copulas...

The scaling function from multiresolution analysis can be used to constuct a smoothing tool in the context of time series analysis. We give a time series smoothing function for which we show the properties of a quasilinear moving average. Furthermore; we discuss its features and especially derive...

Calculating a large number of tail probabilities or tail quantiles for a given distribution families becomes very challenging, if both the cumulative and the inverse distribution function are not available in closed form. In case of the Gaussian and Student t distribution, quantile...

In this article we present both a theoretical framework and a solved example for pricing an European gas storage facility and computing the optimal strategy for its operation. As a representative price index we choose the Dutch TTF day-ahead gas price. We present statistical evidence that the...

Using a large linked employer-employee data set for Germany, we find that the existence of a works council is associated with a lower separation rate to employment, in particular for men and workers with low tenure. While works council monopoly effects show up in all specifications, clear voice...

Although labor market duality is a widespread phenomenon in many OECD countries, there is yet no research consent on the effects of duality on labor market dynamics and performance. Against this background, using a New Keynesian model with unemployment, this paper theoretically investigates the...

The adjusted measure of realized volatility suggested in [20] is applied to high- frequency orderbook and transaction data of DAX and BUND futures from EU- REX in order to identify the drivers of intraday volatility. Four components are identified to have predictive power: an auto-regressive...

We analyze the evolution of the exporter wage premium (EWP) during the Great Recession and the resulting impact on wage inequality in Germany. Our results show that the EWP declined sharply between 2007 and 2008 and stagnated afterwards. This pattern is due to exporters starting to adjust their...

In Pleier und Mangold (2013) wurde ein Pilotprojekt zur Verbesserung des Lernverhaltens untersucht, welches im Wintersemester 2012/2013 durchgeführt wurde. Studierende sollten dabei semesterbegleitend an Online-Tests teilnehmen, um sich frühzeitig auf die abschließende Klausur vorzubereiten....