The dynamics of R&D network in the IT industry

Nobuyuki Hanaki, Ryo Nakajima, Yoshiaki Ogura

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

In this paper, we provide an empirical analysis of evolving networks of successful R&D collaborations in the IT industry (consisting of firms that obtained patents in the technological category of computers and communication) in the U.S. between 1985 and 1995. We first show that the R&D network has become more extensive, more clustered, and more unequal in the sense that 'stars' have emerged in the network. We then analyze the effect of the existing network structure in the process of new R&D collaboration formation. We control for unobserved similarities among firms based on the community structures within the network that the algorithm developed by Girvan and Newman (2004) identifies and find a significant cyclic closure and preferential-attachment effect.

Original languageEnglish
Pages (from-to)386-399
Number of pages14
JournalResearch Policy
Volume39
Issue number3
DOIs
Publication statusPublished - 2010 Apr

Keywords

  • Dynamic networks
  • R&D partnerships

ASJC Scopus subject areas

  • Strategy and Management
  • Management Science and Operations Research
  • Management of Technology and Innovation

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