This paper documents the influence of diaspora networks of high-skilled individuals ? i.e., inventors ? on international technological collaborations. By means of gravity models, it studies the determinants of the internationalization of inventive activity between a group of industrialized...

Geographical economics analyzes the endogenous determination of the location of economic activity in a general equilibrium framework. We investigate the impact of pollution by focusing on the interaction between location advantages and negative pollution externalities associated with local...

We analyze the distribution of economic activity across space for different types of activity and different levels of aggregation. Not only is this distribution highly uneven (independently of the type of activity and level of aggregation), it is also remarkably regular regarding its size...

Cities experience significant, near random walk productivity shocks, yet population is slow to adjust. In practise local population changes are dominated by variation in net migration, and we argue that understanding gross migration is essential to quantify how net migration may slow population...

Migrants of non-Western origin often live among themselves. This residential segregation is, however, not necessarily caused by a lacking will to integrate. It rather seems to a large part explainable with the socio-economic differences between population groups. The key to successful...

Der rasche Ausbau der Breitbandinfrastruktur wird als Schlüssel für die Nutzung der Potentiale der Informations- und Kommunikationstechnologie (IKT) angesehen. Die durch das Internet geschaffene weltweite IK-Infrastruktur und die sukzessive Steigerung der Übertragungsbandbreiten leisten...

Zuwanderer aus nichtwestlichen Ländern wohnen häufig unter sich. Diese "räumliche Segregation" ist aber nicht unbedingt ein Zeichen für mangelnden Integrationswillen. Sie scheint vielmehr zu einem großen Teil erklärbar durch soziale Unterschiede zwischen einheimischen Deutschen und den...

In an empirical analysis, considering 236 U.S. cities in the period 1980-1990, we document a strong positive correlation between local supply of skills and their return. In SMSA's where the average education of workers is high the education premium is also high. This is true both considering the...

We use the adaptive cycle theory to improve our understanding of cycles of urban change in the city of Barcelona from 1953 to present. Most specifically, we explore the vulnerabilities and windows of opportunity these cycles for change introduced in the release (Ω) and reorganization (α)...

Latin America and the Caribbean is the most urbanized region in the developing world. Its urbanization rate of almost 80 % is comparable to that of high-income countries. However, cities in the region are struggling to provide the infrastructure needed for their millions of residents to enjoy a...