The very fact that after a while, an increasing proportion of the urban population was "native," i. e., born in cities rather than in the rural areas, and hence more able to take advantage of the possibilities of city life in preparation for the economic struggle, meant a better chance for organization and adaptation, a better basis for securing greater income shares than was possible for the newly "immigrant" population coming from the countryside or from abroad

p. 17 - "Economic growth and income inequality," 1955