Fernihough, Alan; O'Rourke, Kevin Hjortshøj - C.E.P.R. Discussion Papers - 2014
historic city population sizes. Since we suspect that our coal measure could be endogenous, we use a geologically derived … historical accounts of the Industrial Revolution, we find that coal had a strong influence on city population size from 1800 … onward. Counterfactual estimates of city population sizes indicate that our estimated coal effect explains at least 60% of …