McGarry, Kathleen Social security, economic growth, and the rise in independence of elderly widows in the 20th century - Cambridge, Mass. : National Bureau of Economic Research, 1998 - 26 Subjects--Topical Terms: INTERGENERATIONAL RELATIONS--ECONOMIC ASPECTS--UNITED STATES--20TH CENTURY--ECONOMETRIC MODELSWIDOWS--UNITED STATES--SOCIAL CONDITIONS--20TH CENTURY--ECONOMETRIC MODELSMOTHER'S PENSIONS--UNITED STATES--ECONOMETRIC MODELSECONOMICS--RESEARCH LC Class. No.: HQ1064 .U5 / M322S