to analyse the innovation gradient of each region in Portugal. Our paper presents and systematically investigates these …Portuguese strategic choices regarding innovation and R&D policy have, over the past two decades, produced various … firms' contribution to national and regional growth, their obstacles and impacts. For the purpose of this paper, innovation …

externalities in explaining variation in innovation rates across firms. More specifically, we combine micro-data and census data to … estimate the probability that a firm will introduce a goods, service or process innovation. We consider internal firm … agglomeration variables are only significant for a few specific sectors, and even then only for some types of innovation. …