Strauß, Hubert; Eberhardt, Markus; Helmers, Christian - 2010
primarily interested in the presence and magnitude of spillovers but imposes a rigid ad hoc structure on the channels these can … factor approach which accounts for R&D spillovers without imposing any arbitrary structure on their nature and channels. At …, pointing to the presence of knowledge spillovers. Further, our estimations suggest that when ignoring the presence of …