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Abstract
This report measures the changes in the regional distribution of income in the United States between 1940 and 1970. It uses coefficients of concentration to quantify differences in the distribution of income, population, total employment, and employment in selected industry groups among multi-State regions and multicounty areas in 1940, 1950, 1960, and 1970. The analysis reveals that between 1940 and 1970, the incidence of area poverty diminished because some of the poor moved to higher income areas and because per capita incomes rose appreciably in some economically depressed areas. Little of the improvement in income distribution can be attributed to an equalization among areas in percentage of population employed. Part of it may be due to convergence in industrial mix among areas.