Showing 1 - 10 of 10
This paper studies how patent rights and price regulation affect how fast new drugs are launched in different countries, using newly constructed data on launches of 642 new drugs in 76 countries for the period 1983-2002, and information on the duration and content of patent and price control...
Persistent link: https://www.econbiz.de/10010950846
Support for R&D subsidies relies on empirical evidence that R&D "spills over" between firms. But firm performance is affected by two countervailing R&D spillovers: positive effects from technology spillovers and negative business stealing effects from R&D by product market rivals. We develop a...
Persistent link: https://www.econbiz.de/10005050282
We show that economic incentives affect the number and commercial value of inventions generated in universities. Using panel data for 102 U.S. universities during the period 1991-1999, we find that universities which give higher royalty shares to academic scientists generate more inventions and...
Persistent link: https://www.econbiz.de/10005084498
We model early expectations about the value and technological importance ('quality') of a patented innovation as a …
Persistent link: https://www.econbiz.de/10005774996
Cumulative innovation is central to economic growth. Do patent rights facilitate or impede follow-on innovation? We …. Patent rights block downstream innovation in computers, electronics and medical instruments, but not in drugs, chemicals or … triggers more follow-on innovation by small firms. …
Persistent link: https://www.econbiz.de/10010821663
This paper develops an econometric model of the effects of R&D effort on the magnitude and characteristics of technical change in the Bell system. We estimate simultaneously a vintage capital production function, embodying several distinct types of capital, and various factor demand functions...
Persistent link: https://www.econbiz.de/10012477475
The objectives of this preliminary study are threefold. The first is to analyze empirically the production structure of the Bell System at the aggregate level. Particular attention is focused on the pattern of substitution among the factor inputs and the degree to which the aggregate production...
Persistent link: https://www.econbiz.de/10012478790
We model early expectations about the value and technological importance ('quality') of a patented innovation as a …
Persistent link: https://www.econbiz.de/10012471439
We study the causal impact of patent invalidation on subsequent innovation and exit by the patent holder. The analysis …
Persistent link: https://www.econbiz.de/10012456902
Cumulative innovation is central to economic growth. Do patent rights facilitate or impede follow-on innovation? We …. Patent rights block downstream innovation in computers, electronics and medical instruments, but not in drugs, chemicals or … triggers more follow-on innovation by small firms …
Persistent link: https://www.econbiz.de/10012458396