"Theoretical and empirical contributions on export behavior highlight the importance of firms' productivity and their levels of economies of scale on firms' export success in 'foreign' markets. In the context of agglomeration economies, firms enjoy productivity gains when they are located close...

"The advent of the New Economic Geography has spawned a renewed interest in questions of agglomeration. The work expands the research on the impact of agglomeration economies on employment growth by connecting two strands of the empirical literature. A localization index and a cluster index are...

"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...

"How do agglomeration effects influence the demand for labour? To answer this question, approaches on labour demand are linked with an analysis of the classic 'urbanization effect'. We use models for static and for dynamic labour demand to find out, whether agglomerations develop faster or...

"This paper analyses extensively the effects of inter-regional mobility on the earnings of skilled workers. We interact returns to inter-regional migration with employer changes to separate the two effects and find that inter-regional mobility results in positive additional returns as compared...

"Theories in regional science predict that related establishments benefit from their mutual proximity due to forward-backward linkages, labor market pooling and knowledge spillovers (the Marshallian forces). While the existence of these externalities as a whole is well supported by the empirical...

"Of the typically cited agglomeration advantages labor market pooling receives strong empirical support - yet remains under-explored theoretically. This paper presents a model of human capital formation in an imperfectly competitive, pooled local labor market with heterogeneous workers and...

"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...

"The advent of the New Economic Geography has spawned a renewed interest in questions of agglomeration. The work expands the research on the impact of agglomeration economies on employment growth by connecting two strands of the empirical literature. A localization index and a cluster index are...

"Theories in regional science predict that related establishments benefit from their mutual proximity due to forward-backward linkages, labor market pooling and knowledge spillovers (the Marshallian forces). While the existence of these externalities as a whole is well supported by the empirical...