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The Impact of Population Aging on Financial Markets

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  • James Poterba

Abstract

A number of financial market analysts have argued that the aging of the "Baby Boom" cohort contributed to the rise U.S. asset values during the 1990s, and that asset prices will decline when this group reaches retirement age and begins to draw down its wealth. This paper explores the importance of changing demographic structure for asset returns, asset prices, and the composition of household balance sheets in the United States. Standard models suggest that equilibrium returns on financial assets will vary in response to changes in population age structure. While the direction of the effect of demographic changes is not controversial, the quantitative importance of such changes for financial markets is open to debate. The paper presents several strands of empirical evidence that bear on this issue. First, it describes current age-specific patterns of asset holding in the United States, and finds that asset holdings rise sharply when households are in their 30s and 40s. Aside from the automatic decline in the value of defined benefit pension assets as households age, however, other financial assets decline only gradually during retirement. When these data are used to project asset demands in light of the future age structure of the U.S. population, they do not show a sharp decline in asset demand between 2020 and 2050. This finding calls into question the "asset market meltdown" view. Second, the paper considers the historical association between population age structure and real returns on Treasury bills, long-term government bonds, and corporate stock. The evidence suggests only modest effects, if any, of a changing demographic mix. Statistical tests based on the few effective degrees of freedom in the historical record of age structure and asset returns have limited power to detect such effects. There is a stronger historical correlation between asset levels, as measured for example by the price-dividend ratio, and summary measures of the population age structure. Once again, however, the results are sensitive to choices about econometric specification. These empirical findings provide modest support, at best, for the view that asset prices could decline as the share of households over the age of 65 increases.

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Bibliographic Info

Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number 10851.

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Date of creation: Oct 2004
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Publication status: published as Poterba, James M. "Impact Of Population Aging On Financial Markets In Developed Countries," FRB Kansas City - Economic Review 89(4): 43-53, 4th Qtr. 2004
Handle: RePEc:nbr:nberwo:10851

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  1. Martin Browning & Annamaria Lusardi, 1996. "Household Saving: Micro Theories and Micro Facts," Journal of Economic Literature, American Economic Association, vol. 34(4), pages 1797-1855, December.
  2. Author-Name: John Geanakoplos & Michael Magill & Martine Quinzii, 2004. "Demography and the Long-Run Predictability of the Stock Market," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 35(1), pages 241-326.
  3. Martin Feldstein & Charles Horioka, 1979. "Domestic Savings and International Capital Flows," NBER Working Papers 0310, National Bureau of Economic Research, Inc.
  4. Andrew B. Abel, 2002. "The effects of a baby boom on stock prices and capital accumulation in the presence of Social Security," Working Papers 03-2, Federal Reserve Bank of Philadelphia.
  5. Laurence J. Kotlikoff, Kent Smetters, and Jan Walliser, 2001. "The Coming Generational Storm," Computing in Economics and Finance 2001 276, Society for Computational Economics.
  6. Peter S. Yoo, 1994. "Age distributions and returns of financial assets," Working Papers 1994-002, Federal Reserve Bank of St. Louis.
  7. John F. Helliwell, 2004. "Demographic Changes and International Factor Mobility," NBER Working Papers 10945, National Bureau of Economic Research, Inc.
  8. Miles, David K, 1997. "Modelling the Impact of Demographic Change Upon the Economy," CEPR Discussion Papers 1762, C.E.P.R. Discussion Papers.
  9. Andrew B. Abel, 2001. "Will Bequests Attenuate the Predicted Meltdown in Stock Prices When Baby Boomers Retire?," NBER Working Papers 8131, National Bureau of Economic Research, Inc.
  10. Steven A. Sass & Robert K. Triest, 1997. "Social Security: how social and secure should it be?," Conference Series ; [Proceedings], Federal Reserve Bank of Boston, vol. 41(Jun), pages 29-63.
  11. Peter S. Yoo, 1994. "Age dependent portfolio selection," Working Papers 1994-003, Federal Reserve Bank of St. Louis.
  12. Andrew Ang & Angela Maddaloni, 2003. "Do Demographic Changes Affect Risk Premiums? Evidence from International Data," NBER Working Papers 9677, National Bureau of Economic Research, Inc.
  13. Modigliani, Franco, 1988. "The Role of Intergenerational Transfers and Life Cycle Saving in the Accumulation of Wealth," Journal of Economic Perspectives, American Economic Association, vol. 2(2), pages 15-40, Spring.
  14. James M. Poterba & Andrew Samwick, 2001. "Household Portfolio Allocation over the Life Cycle," NBER Chapters, in: Aging Issues in the United States and Japan, pages 65-104 National Bureau of Economic Research, Inc.
  15. Mankiw, N. Gregory & Weil, David N., 1989. "The baby boom, the baby bust, and the housing market," Regional Science and Urban Economics, Elsevier, vol. 19(2), pages 235-258, May.
  16. Axel Börsch-Supan, 2004. "Global Aging: Issues, Answers, More Questions," MEA discussion paper series 04055, Munich Center for the Economics of Aging (MEA) at the Max Planck Institute for Social Law and Social Policy.
  17. Bakshi, Gurdip S & Chen, Zhiwu, 1994. "Baby Boom, Population Aging, and Capital Markets," The Journal of Business, University of Chicago Press, vol. 67(2), pages 165-202, April.
  18. Robin Brooks, 2002. "Asset-Market Effects of the Baby Boom and Social-Security Reform," American Economic Review, American Economic Association, vol. 92(2), pages 402-406, May.
  19. Olivia S. Mitchell, 2001. "Developments in Decumulation: The Role of Annuity Products in Financing Retirement," NBER Working Papers 8567, National Bureau of Economic Research, Inc.
  20. Kotlikoff, Laurence J, 1988. "Intergenerational Transfers and Savings," Journal of Economic Perspectives, American Economic Association, vol. 2(2), pages 41-58, Spring.
  21. Goyal, Amit, 2004. "Demographics, Stock Market Flows, and Stock Returns," Journal of Financial and Quantitative Analysis, Cambridge University Press, vol. 39(01), pages 115-142, March.
  22. James M. Poterba, 2001. "Demographic Structure And Asset Returns," The Review of Economics and Statistics, MIT Press, vol. 83(4), pages 565-584, November.
  23. Kyung-Mook Lim & David N. Weil, 2003. "The Baby Boom and the Stock Market Boom," Scandinavian Journal of Economics, Wiley Blackwell, vol. 105(3), pages 359-378, 09.
  24. Alan M. Taylor, 2002. "A Century of Current Account Dynamics," NBER Working Papers 8927, National Bureau of Economic Research, Inc.
  25. Engle, Robert F & Granger, Clive W J, 1987. "Co-integration and Error Correction: Representation, Estimation, and Testing," Econometrica, Econometric Society, vol. 55(2), pages 251-76, March.
  26. Sabelhaus, John & Pence, Karen, 1999. "Household Saving in the '90s: Evidence from Cross-Section Wealth Surveys," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 45(4), pages 435-53, December.
  27. Axel Börsch-Supan, 2004. "Global Aging: Issues, Answers, More Questions," Working Papers wp084, University of Michigan, Michigan Retirement Research Center.
  28. Barry P. Bosworth & Ralph C. Bryant & Gary Burtless, 2004. "The Impact of Aging on Financial Markets and the Economy: A Survey," Working Papers, Center for Retirement Research at Boston College 2004-23, Center for Retirement Research.
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  1. Can demographics explain why the income shares of high earners have increased?
    by Stephen Gordon in Worthwhile Canadian Initiative on 2011-09-18 21:22:12
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