The productivity effects of internal and external R&D: Evidence from a dynamic panel data model
Lokshin, Boris, Belderbos, René and Carree, Martin (2007). The productivity effects of internal and external R&D: Evidence from a dynamic panel data model. UNU-MERIT.
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Sub-type Working paper Author Lokshin, Boris
Belderbos, René
Carree, MartinTitle The productivity effects of internal and external R&D: Evidence from a dynamic panel data model Publication Date 2007 Place of Publication Maastricht, NL Publisher UNU-MERIT Pages 25 Abstract We examine the impact of internal and external R&D on labor productivity in a 6-year panel of Dutch manufacturing firms. We apply a dynamic linear panel data model that allows for decreasing or increasing returns to scale in internal and external R&D and for economies of scope. We find complementarity between internal and external R&D, with a positive impact of external R&D only evident in case of sufficient internal R&D. These findings confirm the role of internal R&D in enhancing absorptive capacity and hence the effective utilization of external knowledge. The scope economies due the combination of internal and external R&D are accentuated by decreasing results to scale at high levels of internal and external R&D. The analysis indicates that on average productivity grows by increasing the share of external R&D in total R&D. Keyword R&D
Innovation
Complementarity
Panel dataJEL O32
O33
D24Copyright Holder UNU-MERIT Copyright Year 2007 Copyright type All rights reserved ISSN 18719872 -
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