networks of four selected regions are based on information on patent applicants and inventors. Count data regressions show … positive effects on innovation of both the total number of relations and of access to a larger knowledge base. However, when … some sort of public good to the innovation system. -- Innovator networks ; Gatekeeper ; Zero Iflated Generalised Poisson …

identifying assumptions. Second, it presents estimates of the effect of patent protection on the depreciation rate. Results … suggest that the depreciation rate is in the 2–7 per cent range. Inventions for which a patent is granted are associated with …

, droughts and flooding on the innovation of their respective mitigation technologies. Using patent and disaster data, our study … is the first to relate natural disasters to technology innovation, and also presents the first attempt to empirically …