Showing 1 - 10 of 112
We report a puzzling pair of facts concerning the organization of science. The concentration of research output is declining at the department level but increasing at the individual level. For example, in evolutionary biology, over the period 1980 to 2000, the fraction of citation-weighted...
Persistent link: https://www.econbiz.de/10012459010
Innovation policy involves trading off monopoly output and pricing in the short run in exchange for incentives for …
Persistent link: https://www.econbiz.de/10012481677
Does regulation affect the pace and nature of innovation and if so, by how much? We build a tractable and quantifiable … sharp reduction in the firm's innovation response to exogenous demand shocks for firms just below the regulatory threshold …. We then quantitatively fit the parameters of the model to the data, finding that innovation at the macro level is about 5 …
Persistent link: https://www.econbiz.de/10012482599
Previous empirical studies that have examined the links between pharmaceutical price controls, profits, cash flows, and investment in research and development (R&D) have been largely based on retrospective statistical analyses of firm- and/or industry-level data. These studies, which have...
Persistent link: https://www.econbiz.de/10012467571
We develop a real options model of R&D valuation, which takes into account the uncertainty in the quality of the research output, the time and cost to completion, and the market demand for the R&D output. The model is then applied to study the problem of pharmaceutical under-investment in R&D...
Persistent link: https://www.econbiz.de/10012468653
Despite growing empirical evidence of the link between environmental policy and innovation, most economic models of … innovation in the energy sector. Ignoring induced technological change overstates the welfare costs of an optimal carbon tax …, as the effect of induced innovation on emissions and mean global temperature is small. Sensitivity analysis shows that …
Persistent link: https://www.econbiz.de/10012468936
Research which explores unchartered waters has a high potential for major impact but also carries a higher uncertainty of having impact. Such explorative research is often described as taking a novel approach. This study examines the complex relationship between pursuing a novel approach and...
Persistent link: https://www.econbiz.de/10012456495
The growing peer effects literature pays particular attention to the role of stars. We decompose the causal effect of hiring a star in terms of the productivity impact on: 1) co-located incumbents and 2) new recruits. Using longitudinal university department-level data we report that hiring a...
Persistent link: https://www.econbiz.de/10012458652
This paper examines international and domestic collaborations using data from an original survey of corresponding authors and Web of Science data of articles that had at least one US coauthor in the fields of Particle and Field Physics, Nanoscience and Nanotechnology, and Biotechnology and...
Persistent link: https://www.econbiz.de/10012458845
The empirical analysis in "International R&D Spillovers" (Coe and Helpman, 1995) is first revisited by applying modern panel cointegration estimation techniques to an expanded data set that we have constructed for the purpose of this study. The new estimates confirm the key results reported in...
Persistent link: https://www.econbiz.de/10012464577