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Identifier to cite or link to this item: https://hdl.handle.net/10086/13583

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Title
Internal and external R&D: complements or substitutes? Evidence from a dynamic panel data model
Creator
Creator Name
Lokshin, Boris Lokshin, Boris
Affiliation
Affiliation Name
University of Maastricht
Creator Name
Belderbos, René Belderbos, René
Affiliation
Affiliation Name
Katholieke Universiteit Leuven
Affiliation
Affiliation Name
Eindhoven University of Technology
Creator Name
Carree, Martin Carree, Martin
Affiliation
Affiliation Name
University of Maastricht
Editor
Contributor Name
社会科学における統計分析拠点構築 = Research Unit for Statistical Analysis in Social Sciences
Key Word
R&D
Innovation
Complementarity
Dynamic panel data
Productivity
JEL
O32
O33
D24
Abstract
We examine the impact of internal and external R&D on labor productivity in a 6-year panel of 304 innovating firms. We apply a dynamic linear panel data model that allows for decreasing returns to scale in internal and external R&D with a non-linear approximation of changes in the knowledge stock. 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. The findings confirm the role of internal R&D in enhancing absorptive capacity and hence the effective utilization of external knowledge. These results suggest that empirical studies examining complementarities between continuously measured practices should adopt more general non-linear specifications to allow for correct inferences.
Publisher
Institute of Economic Research, Hitotsubashi University
Issued Date
2006-05
Language
English(eng)
Resource Type
technical report
Version Type
VoR
Is Part OfRelation -
Related Title
Hi-Stat Discussion paper series ; No. d06-163
Relation
Related Identifier
URI
  http://21coe.ier.hit-u.ac.jp/english/index.html
Number of Pages
21
Sponsorship
21世紀COEプログラム = 21st-Century COE Program
Appears in Collections
Hi-Stat Discussion paper series
URL
https://hdl.handle.net/10086/13583