The dynamics of innovation networks

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The dynamics of innovation networks

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Mangematin, V.
Nesta, L.

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Abstract

We analyse the changing contribution of networks to the innovative performance of 30 pharmaceutical companies from 1989 to 1997. Count data models show that collaborations with universities and biotechnology companies are important determinants of the firms' innovative performance, but their respective contribution diverge overtime. Larger firms enjoy a significant size advantage and in-house research activities are highly significant. Returns to scale in research are decreasing overtime while the size advantage is increasing. The changing contribution of networks to knowledge production suggests that these are phase-specific, which has substantial managerial and policy implications. Classification-JEL:; L20; 031; D85

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Paper provided by Grenoble Applied Economics Laboratory (GAEL) in its series Working Papers with number 200309.

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Date of creation: 2003
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Handle: RePEc:gbl:wpaper:200309

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Paper
- Lionel Nesta & Vincent Mangematin, 2004. "The Dynamics of Innovation Networks," SPRU Electronic Working Paper Series 114, University of Sussex, SPRU - Science and Technology Policy Research. [Downloadable!]

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

Zucker, Lynne G & Darby, Michael R & Armstrong, Jeff, 1998. "Geographically Localized Knowledge: Spillovers or Markets?," Economic Inquiry, Oxford University Press, vol. 36(1), pages 65-86, January.
Rebecca Henderson & Iain Cockburn, . "Scale, Scope and Spillovers: The Determinants of Research Productivity in Drug Discovery," Working Papers ec25/94, Department of Economics, University of Lancaster.
Other versions:
- Rebecca Henderson & Iain Cockburn, 1996. "Scale, Scope, and Spillovers: The Determinants of Research Productivity in Drug Discovery," RAND Journal of Economics, The RAND Corporation, vol. 27(1), pages 32-59, Spring. [Downloadable!] (restricted)

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Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

Aschhoff, Birgit & Schmidt, Tobias, 2006. "Empirical evidence on the success of R&D co-operation : Happy together?," ZEW Discussion Papers 06-59, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research. [Downloadable!]
Other versions:
- Birgit Aschhoff & Tobias Schmidt, 2008. "Empirical Evidence on the Success of R&D Cooperation—Happy Together?," Review of Industrial Organization, Springer, vol. 33(1), pages 41-62, August. [Downloadable!] (restricted)
Jane Marceau, 2007. "Bringing science to life in Australia: the need for a new approach in human health biotechnology policy," The Journal of Technology Transfer, Springer, vol. 32(4), pages 303-327, August. [Downloadable!] (restricted)

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