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Inequality : the poor and the rich in America
McGuire, Joseph William, (1969)
Studies in the economics of income maintenance
Eckstein, Otto, (1967)
Income security policy
Palmer, John L., (1976)
Healthiness, Education, and Marital Status
Taubman, Paul,
Changes in Life-Cycle Earnings: What Do Social Security Data Show?
Rosen, Sherwin, (1982)
Healthiness, education, and marital status
Taubman, Paul, (1982)