Gutachten im Auftrag des Bundesministeriums für Bildung und Forschung, Bonn 2001 (126 Seiten)

Gutachten im Auftrag der VEBA AG, Bonn 1999 (106 Seiten).

Study for the Department for Education and Employment of the United Kingdom, Bonn 1999 (117 pages).

Gutachten im Auftrag des Ministeriums für Arbeit und Soziales, Qualifikation und Technologie des Landes Nordrhein-Westfalen, Bonn 2002 (81 Seiten)

In the U.S. the relationship between hours worked and employee earnings has been reversed. Whereas the highest earners used to work the shortest hours, now they work the longest hours. This study examines whether such a reversal has occurred elsewhere, namely, Japan. Since the early 1990s the...

There is no significant relationship between the improvement in happiness and the long term rate of growth of GDP per capita. This is true for three groups of countries analyzed separately − 17 developed, 9 developing, and 11 transition − and also for the 37 countries taken together. Time...

This paper analyzes the relationship between immigrants' retirement status and the prevalence of return migration from the host country to their country of origin. We develop a simple theoretical model to illustrate that under reasonable conditions the probability of return migration is...

This paper provides a snapshot of the stock of immigrants in Germany using the 1995 wave of the Mikrozensus with a particular emphasis on distinguishing first- and second-generation migrants. On the basis of this portrait, we draw attention to the empirically most relevant groups of immigrants...

This paper deals with the impact of electoral competition on politicians' outside earnings. In our framework, politicians face a tradeoff between allocating their time to political effort or to an alternative use generating outside earnings. The main hypothesis is that the amount of time spent...

The publication of the OECD report on the PISA 2000 study induced a public outcry in Germany. On average, German students participating in this standardized test performed considerably below the OECD average and substantially worse than those of other European countries, like Finland or Ireland....