Every reference with a DOI in the deposited reference list resolved to a known
work in Crossref or DataCite at the dated check, and none carried a retraction,
withdrawal, or removal notice.
The 41 references without a DOI — listed, not checked
no DOI — not checkedAhmad, S. E. (1991). ?Social Security and the Poor.? Research Observer (World Bank, Washington DC).
no DOI — not checkedArmstrong, B. ?Memoirs.? Columbia University Documents Library, New York.
no DOI — not checkedAtkinson, A. B. (1987). ?Income Maintenance and Social Insurance.? In A. J. Auerbach and Martin Feldstein (eds.), Handbook of Public Economics. Amsterdam: North-Holland.
no DOI — not checkedBarro, R. J. (1978). The Impact of Social Security on Private Saving. Washington, DC: American Enterprise Institute.
no DOI — not checkedBecker, G. S. (1964). Human Capital. New York: Columbia University Press for NBER.
no DOI — not checkedBoskin, M. J. (ed.). (1978a). Federal Tax Reform: Myths and Realities. San Francisco: Institute for Contemporary Studies.
no DOI — not checkedBoskin, M. J. (ed.). (1978b). The Crisis in Social Security: Problems and Prospects. San Francisco: Institute for Contemporary Studies.
no DOI — not checkedBoskin, M. J. (ed.). (1986). Too Many Promises: The Uncertain Future of Social Security. Homewood, IL: Dow-Jones-Irwin.
no DOI — not checkedBoskin, M.J., and John B. Shoven. (1987). ?Concepts and Measures of Earnings Replacement During Retirement.? In Bodie, Shoven, and Wise (eds.), Issues in Pension Economics. Chicago: University of Chicago Press for the National Bureau of Economic Research.
no DOI — not checkedBrowning, E. K. (1979). ?The Politics of Social Security Reform.? In C. D. Campbell (ed.), Financing Social Security. Washington, DC: American Enterprise Institute for Political Reform.
no DOI — not checkedBurgess, R., and N. Stern. (1991). ?Social Insurance in Developing Countries: What, Who, and How?? In S. E. Ahmad, J. P. Drege, J. Hills, and A. K. Sen (eds.), Social Security in Developing Countries. Oxford: Oxford University Press.
no DOI — not checkedCaballero, R., and R. K. Lyons. (1990). ?The Role of External Economies in U.S. Manufacturing.? Mimeo, Columbia University.
no DOI — not checkedCampbell, C. D. (ed.). (1977). Income Redistribution. Washington, DC: American Enterprise Institute for Policy Research.
no DOI — not checkedCampbell, C. D. (ed.). (1979). Financing Social Security. Washington, DC: American Enterprise Institute for Policy Research.
no DOI — not checkedCashin, P. A. (1993). ?Public Spending and Growth in a Panel of OECD Economies.? Mimeo, Yale University.
no DOI — not checkedChua, H. B. (1993). ?Reginal Spillovers and Economic Growth.? Mimeo, Harvard University.
no DOI — not checkedFeldstein, M. S. (1977a). ?Social Security.? In Boskin Ed.
no DOI — not checkedFeldstein, M. S. (1977b). ?Social Insurance.? In C. D. Campbell (ed.), Income Redistribution. Washington, DC: American Enterprise Institute for Policy Research.
no DOI — not checkedFeldstein, M. S. (1978). ?The Impact of Social Security on Private Savings: Reply to Robert Barro.? In R. J. Barro, The Impact of Social Security on Private Savings. Washington, DC: American Enterprise System.
no DOI — not checkedGlaeser, E. (1992). ?Who Knows What About Whom.? Mimeo, University of Chicago.
no DOI — not checkedGraebner, W. (1980). A History of Retirement, New Haven: Yale University Press.
no DOI — not checkedGrossman, G., and E. Helpman. (1991). Innovation and Growth in the Global Economy. Cambridge, MA: MIT Press.
no DOI — not checkedHemming, R., and J. Kay. (1982). ?Social Security in Great Britain.? In J. J. Rosa (ed.), The World Crisis in Social Security. San Francisco: Institute for Contemporary Studies.
no DOI — not checkedJacobs, J. (1969). The Economy of Cities. New York: Random House.
no DOI — not checkedJanssen, M., and H. Muller. (1982). ?Social Security in Switzerland.? In J. J. Rosa (ed.), The World Crisis in Social Security. San Francisco: Institute for Contemporary Studies.
no DOI — not checkedKotlikoff, L. J., and D. A. Wise. (1987). ?The Incentive Effects of Private Pension Plans.? In Bodie, Shoven, and Wise (eds.), Issues in Pension Economics. Chicage: University of Chicago Press for the National Bureau of Economic Research.
no DOI — not checkedLazear, E. (1983). ?Pensions as Severance Pay? In Bodie and Shoven (eds.), Financial Aspects of the United States Pension System. Chicago: University of Chicago for the National Bureau of Economic Research.
no DOI — not checkedLucas, R. E. Jr. (1990). ?Why Doesn't Capital Flow from Rich to Poor Countries?? American Economic Review, Papers and Proceedings 80, 91?103.
no DOI — not checkedMackenzie, G. A. (1991). ?Selected Issues in Social Security in Latin America.? Mimeo, Fiscal Affairs Department, International Monetary Fund.
no DOI — not checkedMerton, R. C. (1983). ?On the Role of Social Security as a Means for Efficient Risk Sharing in an Economy Where Human Capital Is Not Tradable.? In Bodie and Shoven (eds.), Financial Aspects of the United States Pension System. Chicago: University of Chicago for the National Bureau of Economic Research.
no DOI — not checkedMincer, J. (1974). Schooling, Experience, and Earnings. New York: NBER
no DOI — not checkedOsler, W. (1910). ?The Fixed Period.? In Aequanimitas. Philadelphia.
no DOI — not checkedPechman, J. A., H. J. Aaron, and M. K. Taussig. (1968). Social Security: Perspectives for Reforem. Washington, DC: Brookings Institution.
no DOI — not checkedRosa, J. J. (ed.). (1982). The World Crisis in Social Security. San Francisco: Institute for Contemporary Studies.
no DOI — not checkedSala-i-Martin, X. (1995). ?A Positive Theory of Social Security.? CEPR Working Paper.
no DOI — not checkedStahl, I. (1982). ?Social Security in Sweden.? In J. J. Rosa (ed.), The World Crisis in Social Security. San Francisco: Institute for Contemporary Studies.
no DOI — not checkedSummers, R., and A. Heston. (1988). ?A New Set of International Comparisons of Real Product and Price Levels.? Rewiew of Income and Wealth 34.
no DOI — not checkedTabellini, G. (1992). ?A Positive Theory of Social Security.? Mimeo IGIER, Milano, Italy.
no DOI — not checkedU.S. Department of Health and Human Services. (1989). Social Security Programs Throughout the World. Washington, DC: U.S. Government Prining Office.
no DOI — not checkedVergara, R. (1990). ?Government Inability to Commit as a Rationale for Social Security.? Mimeo Harvard University.
no DOI — not checkedWhite, W. (1937). Re-echoes of Sir William Osler's The fixed period. Bulletin of the Institute of the History of Medicine.
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