Should constraints on urban expansion be relaxed because of external agglomeration economies? In a system of heterogeneous cities, we demonstrate that second-best land use policy consists of a tax on city creation and a subsidy (tax) on urban development in cities in which the marginal-average...

The main objective of this paper is to analyse the determinants of employment growth at the local industry level. We estimate an empirical model in order to assess the role of different types of agglomeration economies to local growth controlling also for the presence of spatial dependence. The...

This paper employs firm-level data to analyze the relative importance of firm characteristics and agglomeration externalities in explaining variation in innovation rates across firms. More specifically, we combine micro-data and census data to estimate the probability that a firm will introduce...

Social interactions are considered pivotal to urban agglomeration forces. This study employs a unique dataset on mobile phone calls to examine how social interactions differ across cities and peripheral areas. We first show that geographical distance is highly detrimental to interpersonal...

Urbanization and localization effects are known to boost the regional economy and its growth potential. The emergence of these effects is due to localized knowledge flows, the closeness to markets, but also due to the diversity of services and industries. All these effects have the potential to...

Several recent econometric investigations found externalities related to the density of economic activity to account for one fifth to one half of total regional variations in average labor productivity in the U.S. and big European countries, including Germany. The present paper shows for German...

Empirical research on agglomeration and regional economic growth puts high emphasis on the impact of specialization, diversity, and competition on regional employment dynamics (Glaeser et al. 1992, Henderson et al. 1995, Blien et al. 2006, Fuchs 2009). However, Beugelsdijk (2006) and Raspe/van...

This paper analyzes subsidies for intracity and intercity commuting in an urban economics framework with two cities and agglomeration externalities, where workers may commute within and between cities. First, commuting subsidies serve to internalize agglomeration externalities: Intracity...

... Es wird der Frage nachgegangen, ob durch die räumliche Konzentration von FuE und Innovationsaktivitäten Synergieeffekte ausgelöst werden,die von den Zentren als Innovations- und Wachstumspole auf die Peripherie des Landes ausstrahlen.