Good point. Somewhat higher in another study: > … in contemporary US cities productivity increases by about 11% with each doubling of their population. https:

Good point. Somewhat higher in another study: > … in contemporary US cities productivity increases by about 11% with each doubling of their population. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3609801/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3609801/