Interaction effects capture the impact of one explanatory variable x1 on the marginal effect of another explanatory variable x2. To explore interaction effects, so-called interaction terms x1x2 are typically included in estimation specifications. While in linear models the effect of a marginal...

Using data on German university graduates, this paper analyzes wage differentials by field of study at labor market entry and five to six years later. At both points in time, graduates from Arts and Humanities have lower average monthly wages compared to other fields of study. Blinder-Oaxaca...

In contrast to conventional model selection criteria, the Focused Information Criterion (FIC) allows for purpose-specific choice of models. This accommodates the idea that one kind of model might be highly appropriate for inferences on a particular parameter, but not for another. Ever since its...

Interaction effects capture the impact of one explanatory variable x1 on the marginal effect of another explanatory variable x2. To explore interaction effects, socalled interaction terms x1x2 are typically included in estimation specifications. While in linear models the effect of a marginal...

This paper examines the patterns of educational assortative mating in East and West Germany. In the literature it is well known that individuals do not mate randomly with respect to social and cultural traits, and that highly assortative mating can lead to polarization and exacerbate economic...

German universities are regarded as being under-financed, inefficient, and performing below average if compared to universities in other European countries and the US. Starting in the 1990s, several German federal states implemented reforms to improve this situation. An important part of these...

The Energy Tax Directive recently proposed by the European Commission envisages to tax fuels based on their energy content. By raising prices for diesel to a level higher than that of petrol, this proposal would eliminate the price advantage currently enjoyed by diesel in most EU Member States....

Rebound effects measure the behaviorally induced offset in the reduction of energy consumption following efficiency improvements. Using panel estimation methods and household travel diary data collected in Germany between 1997 and 2009, this study identifies the rebound effect in private...

There is a large literature on the influence of institutional characteristics on student academic achievement. In contrast, relatively little research focuses on student time allocation and its effects on student performance. This paper contributes to the literature by investigating the effect...

Rebound effects measure the behaviorally induced off set in the reduction of energy consumption following efficiency improvements. Using both panel estimation and quantile-regression methods on household travel diary data collected in Germany between 1997 and 2009, this study investigates the...