The analysis of patent and citation data has become a popular source of evidence on localizedknowledge spillovers and innovation. Nevertheless, an aspect has been overlooked: the patentdistribution across inventors is extremely skewed, as many inventors register one or a fewpatents, while a...

This paper exploits longitudinal data on firm performance and patenting activity for 23 OECD countries over the period 2003-2010 to explore the extent to which changes in the patent stock are associated with flows of capital and labour to patenting firms. While the finding that patenting is...

The analysis of patent and citation data has become a popular source of evidence on localized knowledge spillovers and innovation. Nevertheless, one aspect has been overlooked: the patent distribution across inventors is extremely skewed, as many inventors -- the comets -- register one or few...

Ethnic inventors play important roles in US innovation systems, especially in high-tech regions like Silicon Valley. Do 'ethnicity-innovation' channels exist elsewhere? This paper investigates, using a new panel of UK patents microdata. In theory, ethnicity might affect positively innovation via...

This paper investigates how physical, organisational, institutional, cognitive, social, and ethnic proximities between inventors shape their collaboration decisions. Using a new panel of UK inventors and a novel identification strategy, this paper systematically explores the net effects of all...

We analyze the impact of the establishment of a GBP 380 million basic scientific research facility in the UK on the geographical distribution of related research. We investigate whether the siting of the Diamond Light Source, a 3rd generation synchrotron light source, in Oxfordshire induced a...