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Social Security and Demographic Uncertainty: The Risk-Sharing Properties of Alternative Policies

In: Risk Aspects of Investment-Based Social Security Reform

  • Henning Bohn

As the U.S. population ages, the growing retiree-worker ratio increases the burden of public retirement systems. Is it efficient to maintain a defined benefit social security system? Should PAYGO benefits be reduced and private retirement savings be encouraged? The paper examines these questions in a neoclassical growth model with overlapping generations and demographic uncertainty. In case of shocks to the birth rate, I find that a defined-benefits social security system is more efficient ex-ante than a defined-contribution or privatized system. This is because small cohorts generally enjoy favorable wage and interest rate movements. They are in the labor force when the capital- labor ratio is high and they earn capital income when the capital-labor ratio is low. A defined benefit system helps to offset the effect of these factor price movements by imposing higher taxes on small cohorts. Neither defined-benefits nor its main alternative are fully efficient, however, because they all fail to adjust current retiree benefits in response to anticipated future demographic changes. In case of changes in life-expectancy, the efficient policy response depends on the predictability of deaths at the individual level and on the availability of annuities. Reduced benefits can be efficient if annuities markets are missing and the mortality change is such that accidental bequests decline, but not otherwise.

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This chapter was published in:
  • John Y. Campbell & Martin Feldstein, 2001. "Risk Aspects of Investment-Based Social Security Reform," NBER Books, National Bureau of Economic Research, Inc, number camp01-1, May.
  • This item is provided by National Bureau of Economic Research, Inc in its series NBER Chapters with number 10595.
    Handle: RePEc:nbr:nberch:10595
    Contact details of provider: Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.
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    1. Feldstein, Martin & Horioka, Charles, 1980. "Domestic Saving and International Capital Flows," Economic Journal, Royal Economic Society, vol. 90(358), pages 314-29, June.
    2. Peled, Dan, 1982. "Informational diversity over time and the optimality of monetary equilibria," Journal of Economic Theory, Elsevier, vol. 28(2), pages 255-274, December.
    3. Henning Bohn, 1999. "Should the Social Security Trust Fund Hold Equities," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 2(3), pages 666-697, July.
    4. Andrew B. Abel, 2001. "The Social Security Trust Fund, the Riskless Interest Rate, and Capital Accumulation," NBER Chapters, in: Risk Aspects of Investment-Based Social Security Reform, pages 153-202 National Bureau of Economic Research, Inc.
    5. N. Gregory Mankiw & David Romer & David N. Weil, 1990. "A Contribution to the Empirics of Economic Growth," NBER Working Papers 3541, National Bureau of Economic Research, Inc.
    6. Kjetil Storesletten & Chris Telmer & Amir Yaron, 1998. "The risk sharing implications of alternative social security arrangements," GSIA Working Papers 252, Carnegie Mellon University, Tepper School of Business.
    7. Finis Welch, 1979. "Effects of Cohort Size on Earnings: The Baby Boom Babies' Financial Bust," UCLA Economics Working Papers 146, UCLA Department of Economics.
    8. Jonathan Temple, 1999. "The New Growth Evidence," Journal of Economic Literature, American Economic Association, vol. 37(1), pages 112-156, March.
    9. John McHale, 1999. "The Risk of Social Security Benefit Rule Changes: Some International Evidence," NBER Working Papers 7031, National Bureau of Economic Research, Inc.
    10. Henning Bohn, 1997. "Social Security reform and financial markets," Conference Series ; [Proceedings], Federal Reserve Bank of Boston, vol. 41(Jun), pages 193-227.
    11. Robert J. Shiller, 1998. "Social Security and Institutions for Intergenerational, Intragenerational and International Risk Sharing," Cowles Foundation Discussion Papers 1185, Cowles Foundation for Research in Economics, Yale University.
    12. Bohn, Henning, 1999. "Will social security and Medicare remain viable as the U.S. population is aging?," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 50(1), pages 1-53, June.
    13. James M. Poterba, 1998. "Population Age Structure and Asset Returns: An Empirical Investigation," NBER Working Papers 6774, National Bureau of Economic Research, Inc.
    14. Cutler, D.M. & Poterba, J.M. & Sheiner, L.M. & Summers, L.H., 1990. "An Aging Society: Opportunity Or Challenge," Working papers 553, Massachusetts Institute of Technology (MIT), Department of Economics.
    15. Bohn, Henning, 1998. "Risk Sharing in a Stochastic Overlapping Generations Economy," University of California at Santa Barbara, Economics Working Paper Series qt9r2809f0, Department of Economics, UC Santa Barbara.
    16. Murphy, Kevin M & Welch, Finis, 1992. "The Structure of Wages," The Quarterly Journal of Economics, MIT Press, vol. 107(1), pages 285-326, February.
    17. repec:fth:harver:1490 is not listed on IDEAS
    18. Welch, Finis, 1979. "Effects of Cohort Size on Earnings: The Baby Boom Babies' Financial Bust," Journal of Political Economy, University of Chicago Press, vol. 87(5), pages S65-97, October.
    19. Macunovich, Diane J, 1998. "Relative Cohort Size and Inequality in the United States," American Economic Review, American Economic Association, vol. 88(2), pages 259-64, May.
    20. Smith, Alasdair, 1982. "Intergenerational transfers as social insurance," Journal of Public Economics, Elsevier, vol. 19(1), pages 97-106, October.
    21. Hayashi, Fumio & Altonji, Joseph & Kotlikoff, Laurence, 1996. "Risk-Sharing between and within Families," Econometrica, Econometric Society, vol. 64(2), pages 261-94, March.
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