The Dynamics of R&D Collaboration in the IT Industry

42 Pages Posted: 12 Jul 2007

See all articles by Nobuyuki Hanaki

Nobuyuki Hanaki

Osaka University - Institute of Social and Economic Research

Ryo Nakajima

Keio University

Yoshiaki Ogura

Waseda University, Faculty of Political Science and Economics

Date Written: July 9, 2007

Abstract

In this paper, we provide an empirical analysis of evolving networks of successful R&D collaborations in the IT industry in the U.S. between 1985 and 1995. We first show that the network has become more extensive, more clustered, and more unequal in the sense that 'stars' have emerged in the network. We then run regressions in which we control for firm similarity, including unobserved similarities inferred from the community structure of the network. The results indicate a significant cyclic closure effect and a preferential attachment effect.

Keywords: Dynamic networks, R&D partnerships

JEL Classification: D85

Suggested Citation

Hanaki, Nobuyuki and Nakajima, Ryo and Ogura, Yoshiaki, The Dynamics of R&D Collaboration in the IT Industry (July 9, 2007). Available at SSRN: https://ssrn.com/abstract=1000103 or http://dx.doi.org/10.2139/ssrn.1000103

Nobuyuki Hanaki

Osaka University - Institute of Social and Economic Research ( email )

6-1, Mihogaoka
Suita, Osaka 567-0047
Japan

Ryo Nakajima (Contact Author)

Keio University ( email )

2-15-45 Mita
Minato-ku
Tokyo, 108-8345
Japan

Yoshiaki Ogura

Waseda University, Faculty of Political Science and Economics ( email )

1-6-1 Nishi-waseda, Shinjuku-ku
Tokyo
Japan

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