There is a rapidly developing empirical literature on the effects of agglomeration on economic activity. This paper surveys recent studies that provide econometric estimates of effects. Doubling economic density increases labour productivity by three or more per cent. Beneath this general...

We analyse the determinants of national R&D expenditure and patenting activity. In contrast to most related studies, we account for factors that impact on small, distant countries. These factors include country size, firm size, distance from major economic centres, and industrial structure. We...