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Microstructure of Collaboration: The Network of Open Source Software

Author

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  • Chaim Fershtman

    (Department of Economics, Tel Aviv University,)

  • Neil Gandal

    (Department of Public Policy, Tel Aviv University)

Abstract

The open source model is a form of software development with source code that is typically made available to all interested parties. At the core of this process is a decentralized production process: open source software development is done by a network of unpaid software developers. Using data from Sourceforge.net, the largest repository of Open Source Software (OSS) projects and contributors on the Internet, we construct two related networks: A Project network and a Contributor network. Knowledge spillovers may be closely related to the structure of such networks, since contributors who work on several projects likely exchange information and knowledge. Defining the number of downloads as output we finds that (i) additional contributors are associated with an increase in output, but that additional contributors to projects in the giant component are associated with greater output gains than additional contributors to projects outside of the giant component; (ii) Betweenness centrality of the project is positively associated with the number of downloads. (iii) Closeness centrality of the project appears also to be positively associated with downloads, but the effect is not statistically significant over all specifications. (iv) Controlling for the correlation between these two measures of centrality (betweenness and closeness), the degree is not positively associated with the number of downloads. (v) The average closeness centrality of the contributors that participated in a project is positively correlated with the success of the project. These results suggest that there are positive spillovers of knowledge for projects occupying critical junctures in the information flow. When we define projects as connected if and only if they had at least two contributors in common, we again find that additional contributors are associated with an increase in output, and again find that this increase is much higher for projects with strong ties than other projects in the giant component.

Suggested Citation

  • Chaim Fershtman & Neil Gandal, 2008. "Microstructure of Collaboration: The Network of Open Source Software," Working Papers 08-01, NET Institute, revised Apr 2008.
    • Handle: RePEc:net:wpaper:0801
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    References listed on IDEAS

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    1. d'Aspremont, Claude & Jacquemin, Alexis, 1988. "Cooperative and Noncooperative R&D in Duopoly with Spillovers," American Economic Review, American Economic Association, vol. 78(5), pages 1133-1137, December.
    2. Josh Lerner & Jean Tirole, 2002. "Some Simple Economics of Open Source," Journal of Industrial Economics, Wiley Blackwell, vol. 50(2), pages 197-234, June.
    3. Coralio Ballester & Antoni Calvó-Armengol & Yves Zenou, 2006. "Who's Who in Networks. Wanted: The Key Player," Econometrica, Econometric Society, vol. 74(5), pages 1403-1417, September.
    4. Sanjeev Goyal, 2007. "Introduction to Connections: An Introduction to the Economics of Networks," Introductory Chapters, in: Connections: An Introduction to the Economics of Networks, Princeton University Press.
    5. Sanjeev Goyal & Marco J. van der Leij & José Luis Moraga-Gonzalez, 2006. "Economics: An Emerging Small World," Journal of Political Economy, University of Chicago Press, vol. 114(2), pages 403-432, April.
    6. Hertel, Guido & Niedner, Sven & Herrmann, Stefanie, 2003. "Motivation of software developers in Open Source projects: an Internet-based survey of contributors to the Linux kernel," Research Policy, Elsevier, vol. 32(7), pages 1159-1177, July.
    7. Harhoff, Dietmar & Henkel, Joachim & von Hippel, Eric, 2003. "Profiting from voluntary information spillovers: how users benefit by freely revealing their innovations," Research Policy, Elsevier, vol. 32(10), pages 1753-1769, December.
    8. Griliches, Zvi, 1986. "Economic data issues," Handbook of Econometrics, in: Z. Griliches† & M. D. Intriligator (ed.), Handbook of Econometrics, edition 1, volume 3, chapter 25, pages 1465-1514, Elsevier.
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    Cited by:

    1. Engelhardt, Sebastian v. & Freytag, Andreas, 2013. "Institutions, culture, and open source," Journal of Economic Behavior & Organization, Elsevier, vol. 95(C), pages 90-110.
    2. Sebastian von Engelhardt & Andreas Freytag & Christoph Schulz, 2013. "On the Geographic Allocation of Open Source Software Activities," International Journal of Innovation in the Digital Economy (IJIDE), IGI Global, vol. 4(2), pages 25-39, April.

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    More about this item

    Keywords

    open source; network; Microstructure of Collaboration;
    All these keywords.

    JEL classification:

    • L17 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Open Source Products and Markets

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