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Identifying Age, Cohort and Period Effects in Scientific Research Productivity : Discussion and Illustration Using Simulated and Actual Data on French Physicists

Hall, Bronwyn H.; Mairesse, Jacques; Turner, Laure - 2021

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

Inventing the Endless Frontier : The Effects of the World War Ii Research Effort on Post-War Innovation

Gross, Daniel P.; Sampat, Bhaven N. - 2022

During World War II, the U.S. government launched an unprecedented effort to mobilize science for war: the newly-established Office of Scientific Research and Development (OSRD) entered thousands of R&D contracts with industrial and academic contractors, spending one to two orders of magnitude...

Persistent link: https://www.econbiz.de/10013292242

Social Construction of Trust to Protect Ideas and Data in Space Science and Geophysics

Zucker, Lynne G.; Darby, Michael R. - 2021

This paper applies a rational action/economic sociology approach to the central organizational theory question of whether action is embedded in pre-formed institutions that are relatively cheap in terms of time and energy, or to what extent action becomes embedded in newly constructed...

Persistent link: https://www.econbiz.de/10013243377

Entice : Endogenous Technological Change in the Dice Model of Global Warming

Popp, David - 2021

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/10013243611

European Technology Policy

Eaton, Jonathan; Gutierrez, Eva; Kortum, Samuel S. - 2021

European countries do less research than Japan and the United States. We use a quantitative multi-country growth model to ask: (i) Why is this so? (ii) Would there be any benefit to expanding research in Europe? (iii) What would various European research promotion policies do? We find that (i)...

Persistent link: https://www.econbiz.de/10013245102

Is Public R&D a Complement or Substitute for Private R&D? A Review of the Econometric Evidence

David, Paul A.; Hall, Bronwyn H.; Toole, Andrew A. - 2021

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

International R&D Spillovers

Coe, David T.; Helpman, Elhanan - 2021

Investment in research and development (R&D) affects a country's total factor productivity. Recently new theories of economic growth have emphasized this link and have also identified a number of channels through which a country's R&D affects total factor productivity of its trade partners....

Persistent link: https://www.econbiz.de/10013246064

Research and Development as an Investment

Hall, Bronwyn H.; Hayashi, Fumio - 2021

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

Why and Wherefore of Increased Scientific Collaboration

Freeman, Richard B. - 2014

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/10013060638

Does Knowledge Accumulation Increase the Returns to Collaboration?

Agrawal, Ajay K. - 2014

We conduct the first empirical test of the knowledge burden hypothesis, one of several theories advanced to explain increasing team sizes in science. For identification, we exploit the collapse of the USSR as an exogenous shock to the knowledge frontier causing a sudden release of previously...

Persistent link: https://www.econbiz.de/10013061819