The Evolution of R&D Networks

Dawid H, Hellmann T (2012) Working Papers in Economics and Management; 03-2012.
Bielefeld: Bielefeld University, Department of Business Administration and Economics.

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Abstract
We study the evolution of R&D networks in a Cournot model where firms may lower marginal costs due to bilateral R&D collaborations. Stochastically stable R&D networks exhibit the dominant group architecture, and, contrary to the existing literature, generically unique predictions about the size of the dominant group can be obtained. This size decreases monotonically with respect to the cost of link formation and there exists a lower bound on the size of the dominant group for non-empty networks. Stochastically stable networks are always inef- ficient and an increase in linking costs has a non-monotone effect on average industry profits.
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Dawid H, Hellmann T. The Evolution of R&D Networks. Working Papers in Economics and Management. Vol 03-2012. Bielefeld: Bielefeld University, Department of Business Administration and Economics; 2012.
Dawid, H., & Hellmann, T. (2012). The Evolution of R&D Networks (Working Papers in Economics and Management, 03-2012). Bielefeld: Bielefeld University, Department of Business Administration and Economics. doi:10.4119/unibi/2915321
Dawid, H., and Hellmann, T. (2012). The Evolution of R&D Networks. Working Papers in Economics and Management, 03-2012, Bielefeld: Bielefeld University, Department of Business Administration and Economics.
Dawid, H., & Hellmann, T., 2012. The Evolution of R&D Networks, Working Papers in Economics and Management, no.03-2012, Bielefeld: Bielefeld University, Department of Business Administration and Economics.
H. Dawid and T. Hellmann, The Evolution of R&D Networks, Working Papers in Economics and Management, vol. 03-2012, Bielefeld: Bielefeld University, Department of Business Administration and Economics, 2012.
Dawid, H., Hellmann, T.: The Evolution of R&D Networks. Working Papers in Economics and Management, 03-2012. Bielefeld University, Department of Business Administration and Economics, Bielefeld (2012).
Dawid, Herbert, and Hellmann, Tim. The Evolution of R&D Networks. Bielefeld: Bielefeld University, Department of Business Administration and Economics, 2012. Working Papers in Economics and Management. 03-2012.
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The Evolution of R&D Networks
Dawid H, Hellmann T (2014)
Journal of Economic Behavior and Organization 105: 158-172.

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