We investigate the geographic concentration of patenting in large cities using a sample of 14 developed countries. There is wide dispersion of the share of patented inventions in large metropolitan areas. South Korea and the US are two extreme outliers where patenting is highly concentrated in...

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) is driven by spatial proximity between a VC company and the portfolio firm. Our analysis is based on information about VC investments in Germany between 2004 and 2009. We find that possible problems caused by the geographic distance to a...