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

David, Paul A. - 1999

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

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

Hall, Bronwyn H. - 2005

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

Innovation and Market Value

Hall, Bronwyn H. - 1999

Recent research on financial market valuation of the knowledge assets of publicly traded firms is surveyed. The motivation for using a market value equation to price knowledge assets is discussed and the theory behind this equation is briefly presented. Then the empirical literature that relates...

Persistent link: https://www.econbiz.de/10012471824

The Value of Patents as Indicators of Inventive Activity

Griliches, Zvi - 1986

This paper summarizes a number of studies which use patent data to examine different aspects of technological change. It describes our firm level data set construction effort; reports on the relationship between RLD expenditures and the level of patenting; analyzes the relationship between...

Persistent link: https://www.econbiz.de/10012476987

Innovation and Diffusion

Hall, Bronwyn H. - 2004

The contribution made by innovation and new technologies to economic growth and welfare is largely determined by the … neglected one in the economics of innovation. This chapter, written for a handbook on innovation, provides a historical and …

Persistent link: https://www.econbiz.de/10012468482

Appropriability Mechanisms, Innovation and Productivity : Evidence from the UK

Hall, Bronwyn H. - 2014

between appropriability mechanisms, innovation and firm-level productivity. We enrich this model in several ways. First, we … consider different types of innovation spending and study the differences in estimates when innovation spending (rather than R …&D spending) is used to predict innovation in the CDM model. Second, we assume that a firm simultaneously innovates and chooses …

Persistent link: https://www.econbiz.de/10012458153

The Importance (or not) of Patents to UK Firms

Hall, Bronwyn H. - 2013

innovative performance measured as turnover due to innovation, but not between patenting and subsequent employment growth. The …

Persistent link: https://www.econbiz.de/10012459572

How Does Expropriation Risk Affect Innovation?

Benavente H., José Miguel; Bravo Ortega, Claudio; … - National Bureau of Economic Research - 2024

We analyze how expropriation risk reduces incentives for innovation and reallocates resources from the innovative … risk, such as corruption, negatively impacts innovation by reducing R&D expenditure, human capital in R&D, number of … highlight the detrimental effects of expropriation risk on innovation and economic development at the country level …

Persistent link: https://www.econbiz.de/10014512142