Duchêne, Vincent; Lykogianni, Elissavet; Verbeek, Arnold - 2009
to the origin of the EU-US R&D investment gap, which lead to a blossoming of papers and studies examining sector …-specific R&D expenditure. Very few of them, however, examined this lack of comparability in an EU-US context. This is exactly … impact of these differences on a correct appreciation of the role of the services sector in the EU-US R&D investment gap …