Using a comprehensive international trade data set we investigate empirical regularities (known as Zipf’s Law or the rank-size rule) for the distribution of the interaction between countries as measured by revealed comparative advantage. Using the recently developed estimator by Gabaix and...

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...

We examine the role of spatial proximity for Venture Capital (VC) investments inGermany. The main database is a survey of 85 personal interviews withrepresentatives of different types of financial institutions. The analysis shows thatspatial proximity is far less important for VC investments...

While a market economy seeks equilibrium, a knowledge-based economy may upset this tendency towards stabilization by adding the feedback of globalization. The interaction among the three subdynamics of economic exchange, technological innovation, and institutional control can be captured with a...

We investigate the contribution of different inputs, particularly different knowledge sources, on regional patenting output in the framework of a knowledge production function. The knowledge sources included are R&D employment, size of public research institutions by field of research (budget),...

We examine the role of spatial proximity for Venture Capital (VC) investments in Germany. The main database is a survey of 85 personal interviews with representatives of different types of financial institutions. The analysis shows that spatial proximity is far less important for VC investments...

We measure the efficiency of regional innovation systems (RIS) in Germany by means of a knowledge production function. This function relates private sector Research and Development (R&D) in a region to the number of inventions that have been registered by residents of that region. Two approaches...

We investigate whether the supply of Venture Capital (VC) in Germany is driven by spatial influences. The study is based on information from more than 300 VC investments made in Germany in the year 2004 and 2005. We find evidence that the geographical distance between a VC company and the...

Wir analysieren die räumliche Verteilung verschiedener Kategorien kreativer Personen in Deutschland. Allgemein ist der Anteil der Kreativen in den Städten höher als auf dem Land. Ein etwas abweichendes Standortverhalten zeigen die freiberuflichen Künstler, für die auch in einigen...