Discussion paper DP8151 Spatial Sorting: Why New York, Los Angeles and Detroit attract the greatest minds as well as the unskilled Jan Eeckhout Kurt Schmidheiny Roberto Pinheiro 1 Dec 2010 International Trade and Regional Economics J31 R1 R23
Discussion paper DP7057 Dynamics and Stagnation in the Malthusian Epoch: Theory and Evidence Oded Galor Quamrul Ashraf 23 Nov 2008 International Macroeconomics N10 N30 N50 O10 O40 O50