Ortega-Argilés, Raquel; Piva, Mariacristina; … - 2011
investment in knowledge, and its productivity, looking at sectoral peculiarities which may emerge; to this end, we use a large …-2008, for a total of 16,079 observations. Our main findings can be summarised as follows: knowledge stock has a significant … seems to emerge. -- R&D ; productivity ; knowledge stock ; panel data …