Bloom, Nick, Schankerman, Mark and Van Reenen, John
Identifying technology spillovers and product market rivalry.
Centre for Economic Policy Research, London, UK.
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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.
||© 2005 Nicholas Bloom, Mark Schankerman, John Van Reenen
||Spillovers, R&D, market value, patents
|Library of Congress subject classification:
||T Technology > T Technology (General)
H Social Sciences > HB Economic Theory
H Social Sciences > HD Industries. Land use. Labor
|Journal of Economic Literature Classification System:
||O - Economic Development, Technological Change, and Growth > O3 - Technological Change; Research and Development > O31 - Innovation and Invention: Processes and Incentives
O - Economic Development, Technological Change, and Growth > O3 - Technological Change; Research and Development > O33 - Technological Change: Choices and Consequences; Diffusion Processes
O - Economic Development, Technological Change, and Growth > O3 - Technological Change; Research and Development > O32 - Management of Technological Innovation and R&D
F - International Economics > F2 - International Factor Movements and International Business > F23 - Multinational Firms; International Business
||Collections > Economists Online
Research centres and groups > Centre for Economic Performance (CEP)
Departments > Economics
Research centres and groups > Suntory and Toyota International Centres for Economics and Related Disciplines (STICERD)
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