000			01713cam a2200229 4500500
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041			_afre
042			_adc
100	1	0	_aPlunket, Anne _eauthor
700	1	0	_a Plunket, Anne _eauthor
245	0	0	_aFirms’ inventiveness and localized vertical R&D spillovers
260			_c2009.
500			_a12
520			_aIt is well known that knowledge spillovers exist and that they generate externalities for firms undertaking R&D. Nevertheless, it still remains difficult to predict which local industrial structure may best favor the diffusion of knowledge externalities and finally innovation. In order to further investigate these issues, this paper studies vertical R&D spillovers in addition to the usual localization and urbanization externalities. The underlying hypothesis is that a firm should benefit from knowledge externalities if it is located in a geographical area close to R&D intensive users and producers identified by input/output relationships. Since urbanization as vertical economies are generated by inter-industry links, the issue is then to investigate if urbanization and user-supplier externalities are of a same nature, and thus substitutes or of a different nature and thus may play a complementary role in the firms’ innovation process.JEL Codes: L1, O3, R1, R3
690			_ainput-output
690			_aknowledge externalities
690			_aR&D spillovers
690			_auser-suppliers
690			_avertical relationships
786	0		_nJournal of Innovation Economics & Management | 4 | 2 | 2009-12-08 | p. 147-170
856	4	1	_uhttps://shs.cairn.info/revue-journal-of-innovation-economics-2009-2-page-147?lang=en&redirect-ssocas=7080
999			_c1120345 _d1120345