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 …

Studies of firm-level data have shown that there is a huge dispersion of productivity across firms even when industries … productive. The formers’ convergence could therefore constitute an important part of productivity growth at the macroeconomic … which can explain it. Productivity convergence was stronger for labour productivity than for total factor productivity. But …