Innovation and technological change are central to the quest for regional development. In the globally … structure characterised by its extent of specialisation, competition and diversity, to yield innovation and productivity growth … (diversity) and Porter externalities (competition) that have provided alternative explanations for innovation and urban growth …

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. …