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International comparison of R&D investment by European, US and Japanese companies
Martínez-Torres, María del Rocío, (2010)
Economic growth in Europe : a comparative industry perspective
Timmer, Marcel, (2010)
ePerformance report ...
(2009)
Technology gap and cumulative growth : models and outcomes
Castellacci, Fulvio, (2002)
A neo-Schumpeterian approach to why growth rates differ
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Innovation and social welfare : a new research agenda
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