The Scope of Open Source Licensing
University of Toulouse 1 - Industrial Economic Institute (IDEI); University of Toulouse 1 - Groupe de Recherche en Economie Mathématique et Quantitative (GREMAQ); Centre for Economic Policy Research (CEPR)
Harvard Business School - Finance Unit; Harvard University - Entrepreneurial Management Unit; National Bureau of Economic Research (NBER)
Journal of Law, Economics, and Organization, Vol. 21, No. 1, pp. 20-56, 2005
This article is an initial exploration of the determinants of open source license choice. It first highlights how the decision is shaped not just by the preferences of the licensor itself, but also by that of the community of developers. The article then presents an empirical analysis of the determinants of license choice using the SourceForge database, a compilation of nearly 40,000 open source projects. Projects geared toward end-users tend to have restrictive licenses, while those oriented toward developers are less likely to do so. Projects that are designed to run on commercial operating systems and whose primary language is English are less likely to have restrictive licenses. Projects that are likely to be attractive to consumers-such as games-and software developed in a corporate setting are more likely to have restrictive licenses. Projects with unrestricted licenses attract more contributors. These findings are broadly consistent with theoretical predictions.
Accepted Paper Series
Date posted: January 5, 2005
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