otherwise visible to society. We develop a structural model of initial and follow-on innovation to determine the effects of such … a shift in disclosure on overall welfare in industries characterized by cumulative innovation. We find that while … significant decline in follow-on innovation. …

We investigate the causal effect of patent rights on cumulative innovation, using large-scale data that approximate the … patent universe in its technological and economic variety. We introduce a novel instrumental variable for patent invalidation … that exploits personnel scarcity in post-grant opposition at the European Patent Office. We find that patent invalidation …

Skilled labor is a key input to the innovation process. A shortage in supply of skilled labor may hence impede … innovation activities, resulting in lower productivity gains. While governments are concerned about these likely negative impacts …, there is only limited empirical evidence whether and to what extent labor shortage affects innovation activities. The paper …

Recent empirical evidence has shown that firm’s innovation behavior exhibits high persistency but not much is known … environment and asks how local knowledge spillovers affect firms' innovation persistence. The empirical analysis draws upon a … representative panel data set of firms in Germany from 2002-2016, complemented by detailed geographic information of patent activity …

From a firm’s perspective two competing forces are driving the decision to invest in innovation. On the one hand …, innovative performance is an important driver of profitability and growth. On the other hand, investments in innovation suffer … firms may protect their inventions by means of intellectual property rights, such as patents. By taking out a patent …

quality) than their European counterparts after patent rights for software inventions were introduced. We then introduce a …

challenger invests more into R&D in order to enter a new market than the incumbent. Thus, the patent racing model by Reinganum …

collaborate in R&D is increasing in R&D productivity. The key findings of the theoretical model are tested using German innovation … survey data for the service sector. A simultaneous model for cooperation choice and innovation expenditures shows that R …&D cooperation has a weakly significant positive effect on innovation expenditures. The empirical results broadly support the …