The diffusion of innovations is supposed to dissipate inventors' rents. Yet in many documented cases, inventors freely shared knowledge with their competitors. Using a model and case studies, this paper explores why sharing did not eliminate inventors' incentives. Each new technology coexisted...

This paper examines the relationships between the R&D sector activities of the EU and the US using multivariate Granger-causality tests. The multivariate framework employed also allows us to make causal inferences about the effects of R&D activity on labour productivity in the home and foreign...