Geographic and technological R&D spillovers within the triad: micro evidence from US patents
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In this article, the authors investigate the extent to which R&D spillover effects are intensified by both geographic and technological proximities between spillover generating and receiving firms, and also control for the firm's ability to identify, assimilate and absorb the external knowledge stock.Abstract:
This paper aims at assessing the magnitude of R&D spillover effects on large international R&D companies’ productivity growth. In particular, we investigate the extent to which R&D spillover effects are intensified by both geographic and technological proximities between spillover generating and receiving firms. We also control for the firm’s ability to identify, assimilate and absorb the external knowledge stock. The results estimated by means of panel data econometric methods (system GMM) indicate a positive and significant impact of both types of R&D spillovers and of absorptive capacity on productivity performance.read more
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TL;DR: In this article, the authors assess the contributions of three potential sources of research and development spillovers: geographic, technological, and product market (horizontal), and find that geographic location is important for productivity, as are technology and product spillovers.
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Richard Blundell,Stephen Bond +1 more
TL;DR: In this paper, two alternative linear estimators that are designed to improve the properties of the standard first-differenced GMM estimator are presented. But both estimators require restrictions on the initial conditions process.
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Another look at the instrumental variable estimation of error-components models
Manuel Arellano,Olympia Bover +1 more
TL;DR: In this paper, a framework for efficient IV estimators of random effects models with information in levels which can accommodate predetermined variables is presented. But the authors do not consider models with predetermined variables that have constant correlation with the effects.
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Endogenous Technological Change
TL;DR: In this paper, the authors show that the stock of human capital determines the rate of growth, that too little human capital is devoted to research in equilibrium, that integration into world markets will increase growth rates, and that having a large population is not sufficient to generate growth.
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Innovation and Learning: The Two Faces of R & D
TL;DR: In this paper, the authors assume that firms invest in R&D not only to generate innovations, but also to learn from competitors and extraindustry knowledge sources (e.g., university and government labs).
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Innovation and growth in the global economy
Gene M. Grossman,Elhanan Helpman +1 more
TL;DR: Grossman and Helpman as discussed by the authors developed a unique approach in which innovation is viewed as a deliberate outgrowth of investments in industrial research by forward-looking, profit-seeking agents.