Showing 1 - 10 of 95
Persistent link: https://www.econbiz.de/10014329003
Using new data on citations to university patents and scientific publications, we study how geography affects … university knowledge spillovers. Citations to patents decline sharply with distance and are strongly constrained by state borders …
Persistent link: https://www.econbiz.de/10011010018
individually-owned patents in the U.S., we exploit variation in capital gains tax rates as an instrument to identify the causal … reduces litigation risk, on average. The impact of trade on litigation is heterogeneous, however. Patents with larger …
Persistent link: https://www.econbiz.de/10009322505
Using new data on citations to university patents and scientific publications, and measures of distance based on Google … maps, we study how geography affects university knowledge diffusion. We show that knowledge flows from patents are … is larger for patents from public, as compared to private, universities and this is partly explained by the local …
Persistent link: https://www.econbiz.de/10008642874
Using new data on citations to university patents and scientific publications, we study how geography affects … university knowledge spillovers. Citations to patents decline sharply with distance up to about 150 miles and are strongly …
Persistent link: https://www.econbiz.de/10008694945
individually-owned patents in the U.S., we exploit variation in capital gains tax rates as an instrument to identify the causal … reduces litigation risk, on average. The impact of trade on litigation is heterogeneous, however. Patents with larger …
Persistent link: https://www.econbiz.de/10009276046
Strategic patenting is widely believed to raise the costs of innovating, especially in industries characterised by cumulative innovation. This paper studies the effects of strategic patenting on R&D, patenting and market value in the computer software industry. We focus on two key aspects:...
Persistent link: https://www.econbiz.de/10010744919
manufacturing firms in the U.S. for the period 1980-93. We focus on three factors: the level of demand, the quality of patents, and … technological exhaustion. We first develop an index of patent ‘quality’ using detailed information on patents in the U.S. in seven …
Persistent link: https://www.econbiz.de/10010746047
Strategic patenting is widely believed to raise the costs of innovating, especially in industries characterised by cumulative innovation. This paper studies the effects of strategic patenting on R&D, patenting and market value in the computer software industry. We focus on two key aspects:...
Persistent link: https://www.econbiz.de/10010746431
When firms have different R&D productivities, it may be welfare increasing to differentiate patent lives across inventions. The reason is that any uniform patent life provides excessive incentives to do R&D to the low productivity firms and insufficient incentives to the high productivity firms....
Persistent link: https://www.econbiz.de/10010746713