Clemens, Michael A. - Institute for the Study of Labor (IZA) - 2014
suggest something quite different: that over the course of a "mobility transition", emigration generally rises with economic … development until countries reach upper-middle income, and only thereafter falls. This note quantifies the shape of the mobility … transition in every decade since 1960. It then briefly surveys 45 years of research, which has yielded six classes of theory to …