Firms' productivity growth and R&D spillovers: An analysis of alternative technological proximity measures

Michele Cincera

Economics of Innovation and New Technology, 2005, vol. 14, issue 8, 657-682

Abstract: This paper aim at assessing the impact of R&D spillovers on firms' economic performance as measured by productivity growth. The construction of R&D spillovers is based on Jaffe's methodology (1988, 1996) which associates econometrics and data analysis. The main objective of the paper is to extend Jaffe's methodology by examining alternative methods for measuring R&D spillovers and to test their impacts in terms of the robustness of results. In particular, the method used to classify firms into technological clusters as well as the metrics implemented to appreciate firms' technological proximities which enter the construction of spillovers are further investigated. In addition to R&D spillovers, firms' own R&D capital, labour and physical capital are estimated by means of a Cobb-Douglas production function. The data set consists of a representative sample of 625 worldwide R&D intensive firms over the period 1987-1994.

Keywords: R&D spillovers; Productivity growth; Panel data; Clustering methods (search for similar items in EconPapers)
Date: 2005
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Citations: View citations in EconPapers (37)

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Related works:
Working Paper: Firms' Productivity Growth and R&D Spillovers: An Analysis of Alternative Technological Proximity Measures (2005)
Working Paper: Firms’ productivity growth and R&D spillovers: An analysis of alternative technological proximity measures (2005)
Working Paper: Firms' productivity growth and R&D spillovers: an analysis of alternative technological proximity measures (2005)
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DOI: 10.1080/10438590500056768

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