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Is public R&D spending complementary and thus "additional" to private R&D spending, or does it substitute for and tend to "crowd out" private R&D? Conflicting answers are given to this question. We survey the body of available economectric evidence accumulated over the past 35 years. A framework...
Persistent link: https://www.econbiz.de/10012471411
The identification of age, cohort (vintage), and period (year) effects in a panel of individuals or other units is an old problem in the social sciences, but one that has not been much studied in the context of measuring researcher productivity. In the context of a semi-parametric model of...
Persistent link: https://www.econbiz.de/10012466933
Distribution of Rewards from Innovation', Journal of Evolutionary Economics, 10 (1-2), January, 175-200 -- Paula E. Stephan (1996 …-306 -- Wesley M. Cohen and Daniel A. Levinthal (1989), 'Innovation and Learning: The Two Faces of R&D', Economic Journal, 99 (397 … Economics of Innovation and Technological Change, Chapter 6, Oxford, UK: Blackwell Publishers, 182-264 -- Philippe Aghion, Nick …
Persistent link: https://www.econbiz.de/10012419896
We review the econometric literature on measuring the returns to R&D. The theoretical frameworks that have been used are outlined, followed by an extensive discussion of measurement and econometric issues that arise when estimating the models. We then provide a series of tables summarizing the...
Persistent link: https://www.econbiz.de/10014025147
Is public R&D spending complementary and thus "additional" to private R&D spending, or does it substitute for and tend to "crowd out" private R&D? Conflicting answers are given to this question. We survey the body of available economectric evidence accumulated over the past 35 years. A framework...
Persistent link: https://www.econbiz.de/10013245706
About 20 percent of the gross investment expenditures of U.S. manufacturing firms is expenditures on research and development. Like investment in physical capital, R&D also responds to news about future prospects of the firm, such as profitability, technological opportunities, or changes in...
Persistent link: https://www.econbiz.de/10013247005
The identification of age, cohort (vintage), and period (year) effects in a panel of individuals or other units is an old problem in the social sciences, but one that has not been much studied in the context of measuring researcher productivity. In the context of a semi-parametric model of...
Persistent link: https://www.econbiz.de/10013249571