Identifying Technology Spillovers and Product Market Rivalry

Mark Schankerman, John van Reenen and Nicholas Bloom

No 4912, CEPR Discussion Papers from C.E.P.R. Discussion Papers

Abstract: Support for many R&D and technology policies relies on empirical evidence that R&D ?spills over? between firms. But there are two countervailing R&D spillovers: positive effects from technology spillovers and negative effects from business stealing by product market rivals. We develop a general framework showing that technology and product market spillovers have testable implications for a range of performance indicators, and exploit these using distinct measures of a firm?s position in technology space and product market space. We show using panel data on US firms between 1981 and 2001 that both technology and product market spillovers operate, but that net social returns are several times larger than private returns. The spillover effects are also revealed when we analyze three high-tech sectors in detail - pharmaceuticals, computer hardware and telecommunication equipment. Using the model we evaluate three R&D subsidy policies and show that the typical focus of support for small and medium firms may be misplaced.

Keywords: Spillovers; R&d; Market value; Patents (search for similar items in EconPapers)
JEL-codes: F23 O31 O32 O33 (search for similar items in EconPapers)
Date: 2005-02
New Economics Papers: this item is included in nep-tid
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Citations: View citations in EconPapers (35)

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Related works:
Journal Article: Identifying Technology Spillovers and Product Market Rivalry (2013)
Working Paper: Identifying technology spillovers and product market rivalry (2013)
Working Paper: Identifying technology spillovers and product market rivalry (2007)
Working Paper: Identifying Technology Spillovers and Product Market Rivalry (2007)
Journal Article: Identifying technology spillovers and product market rivalry (2005)
Working Paper: Identifying Technology Spillovers and Product Market Rivalry (2005)
Working Paper: Identifying technology spillovers and product market rivalry (2005)
Working Paper: Identifying technology spillovers and product market rivalry (2005)
Working Paper: Identifying technology spillovers and product market rivalry (2005)
Working Paper: Identifying technology spillovers and product market rivalry (2005)
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