A non-linear model is applied where suddenly strong spurts of exports occur when changes of the exchange rate go beyond a zone of inaction. We call the latter a "play" area-analogous to mechanical play and implement an algorithm describing path-dependent play-hysteresis into a regression...

Using the Socio-Economic Panel (SOEP), this paper investigates the determinants of training participation in Germany, distinguishing between self-initiated and employer-initiated training. Self-initiated training is considered as being a decision within households rather than purely individual....

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...

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...

Empirical evidence on the degree of business-tax shifting to employees via the wage level is highly controversial and rare. It remains open to which extent the tax burden is shifted, whether there are differences for tax increases and decreases, or whether there exists some treatment...

Does immigration accelerate sectoral change towards high-productivity sectors? This paper uses the mass displacement of ethnic Germans from Eastern Europe to West Germany after World War II as a natural experiment to study this question. A simple two-sector model of the economy, in which moving...

This paper studies the effect of parenthood timing on future wages. Using data from the German Socio-Economic Panel (SOEP), we employ an instrumental variable approach to identify the causal effect of delaying parenthood on wages of mothers and fathers. Consistent with previous studies, we...

This paper examines the effects of hospital case volume on quality of care on the example of intact abdominal aortic aneurysm (AAA) and hip fracture (HIP). We conduct the analysis on patient level with multiple logistic regression analysis. Quality is measured with a binary variable which...