"The labor markets of most industrialized countries are polarized. This means that employment has grown in jobs at the upper and lower tails of the wage distribution, while employment in the middle part of the distribution has stagnated or declined. However, there exists no measure that allows a...

"Empirical evidence for the US shows that migrants increase the productivity of regions. To explain the impact of migrants on the average firm productivity we construct a general equilibrium model with monopolistic competition a la Melitz (2003). We consider heterogeneous firms with different...

"Differences in regional labour market conditions are still pronounced in Germany, especially between the Eastern and the Western part. Traditional neoclassical models imply that labour mobility should reduce disparities. In contrast, models that include externalities or selective migration...

"Using the IAB Employment Sample (IABS) covering 1980-2001 we investigate what impact the fall of the Iron Curtain has had on the skill structure of employment and wages in the western German districts neighbouring the Czech Republic. The introduction of free trade in this region, which has one...

"Hardly noticed in Western Europe the fall of the Iron Curtain had also effects on the regional structures of the labour markets in the Central and Eastern European Countries (CEEC). I analyse whether during the undoubtedly increasing integration of markets the Czech border region close to the...

"In this paper we study the effect of small labor market entry cohorts on (un)employment in Western Germany. From a theoretical point of view, decreasing cohort sizes may on the one hand reduce unemployment due to 'inverse cohort crowding' or on the other hand increase unemployment if companies...

"This paper deals with the medium-term effects of job mobility on the average wage growth of job movers in East Germany. The analysis is based on all employees subject to social insurance contributions working in East Germany in 2004. Using a statistical matching procedure combined with a...

"Reservation wages indicate the wage threshold for which individual workers are inclined to supply their working capacity. In important theoretical approaches it is assumed that this threshold depends on the unemployment rate. If this is true, the variation of reservation wages might be an...

"Since the fall of the iron curtain in 1989, the migration deficit of the Eastern part of Germany has accumulated to 1.8 million people, which is over 10 percent of its initial population. Depending on their human capital endowment, these migrants might either - in the case of low-skilled...

"The paper analyses the impact of regional own-ethnic concentration on the language proficiency of immigrants. It solves the endogeneity of immigrants' location choices by exploiting the fact that guest-workers in Germany after WWII were initially placed by firms and labor agencies. We find a...