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Innovative strategic groups in multinational industries
De Bondt, Raymond, (1986)
Beyond borders : internationalisation of R&D and policy implications for small open economies
Spithoven, André, (2005)
Competing internationally : on the importance of R&D for export activity
Czarnitzki, Dirk, (2010)
The Herfindahl index and concentration ratio revisited
Sleuwaegen, Leo, (1986)
Strategic investment with spillovers
De Bondt, Raymond, (1989)