"Lifetime earnings and income in old age."; "Pursell, Donald E., 1920-", "Kreps, Jaunita Morris."; "Old age pensions--United States.", "Older people--Economic conditions.", "Income--United States.", "Retirement income."; "Kreps, Jaunita Morris.", "Pursell, Donald E., 1920-"; "1968"; "Photocopy of book chapter from: Old age income assurance : a compendium of papers on problems and policy issues in the public and private pension system submitted to the Subcommittee on Fiscal Policy of the Joint Economic Committee. Congress of the United States, pt. 2."; ""; "P10574"; "pec"; "Income--United States.", "Retirement income.", "Old age pensions--United States.", "Older people--Economic conditions."; "14256"; .