3 key publications

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  Stam, W. (2009). When does community participation enhance the performance of open source software companies? Research Policy, 38(8):1288--1299.

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  van Bekkum, S., Pennings, E. and Smit, H. (2009). A Real Options Perspective on R&D Portfolio Diversification Research Policy, 38(7):1150--1158.

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  Pennings, E. and Altomonte, C. (2009). Domestic plant productivity and incremental spillovers from foreign direct investment Journal of International Business Studies, 40(7):1131--1148.