The net entry contribution to aggregate productivity growth has increased dramatically in the UK over 1990saccording to calculations based on data from the Annual Respondents Database (ARD). Some recent studieshave tried to link this to other structural changes over the same period such as...

Studies of firm-level data have shown that there is a huge dispersion of productivity across firms even when industries are narrowly defined. So there is a significant opportunity for the least productive firms to catch up to the most productive. The formers' convergence could therefore...