Gruber, Jonathan; Johnson, Simon; Moretti, Enrico - National Bureau of Economic Research - 2022
density from Moretti (2021). Adding more scientists to a city increases both productivity and production costs, but the rise … in productivity is larger than the rise in production costs. In particular, each 10% rise in the stock of scientists is … than the increase in production costs. This finding is consistent with the increased concentration of R&D activity observed …