What factors underlie industry differences in research intensity and productivity growth? We develop a multi … consumer preferences. We find that long run industry differences in both productivity growth and R&D intensity mainly reflect … research cannot account for industry differences in productivity growth rates, and that variation in intertemporal knowledge …

cluster. Yet, most studies on the productivity effects of agglomerations measure innovation with patent data, thus capturing … alternative proxy for productivity, complementing the literature by covering a broad range of software engineering. With user … activity data covering the years 2015 to 2021, we relate cluster size to an individual's productivity. Our findings suggest …