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Money in Motion: Dynamic Portfolio Choice in Retirement

  • Wolfram Horneff

    (Goethe University)

  • Raimond Maurer

    (Goethe University)

  • Olivia Mitchell

    (The Wharton School)

  • Michael Stamos

    (Goethe University)

Retirees confront the difficult problem of how to manage their money in retirement so as to not outlive their funds while continuing to invest in capital markets. We posit a dynamic utility maximizer who makes both asset location and allocation decisions when managing her retirement financial wealth and annuities, and we prove that she can benefit from both the equity premium and longevity insurance in her retirement portfolio. Even without bequests, she will not fully annuitize; rather, her optimal stock allocation amounts initially to more than half of her financial wealth and declines with age. Welfare gains from this strategy can amount to 40 percent of financial wealth (depending on risk parameters and other resources). In practice, it turns out that many retirees will do almost as well by purchasing a variable annuity invested 60/40 in stocks/bonds.

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Paper provided by University of Michigan, Michigan Retirement Research Center in its series Working Papers with number wp152.

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Length: 33 pages
Date of creation: Mar 2007
Date of revision:
Handle: RePEc:mrr:papers:wp152
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  1. Jeffrey R. Brown & Olivia S. Mitchell & James M. Poterba, . "The Role of Real Annuities and Indexed Bonds In An Individual Accounts Retirement Program," Pension Research Council Working Papers 99-2, Wharton School Pension Research Council, University of Pennsylvania.
  2. Ranguelova, Elena & Feldstein, Martin, 2001. "Individual Risk in an Investment-Based Social Security System," Scholarly Articles 2797440, Harvard University Department of Economics.
  3. Thomas Davidoff & Jeffrey R. Brown & Peter A. Diamond, 2005. "Annuities and Individual Welfare," American Economic Review, American Economic Association, vol. 95(5), pages 1573-1590, December.
  4. David Blake & Andrew J. G. Cairns & Kevin Dowd, 2003. "Pensionmetrics 2: stochastic pension plan design during the distribution phase," LSE Research Online Documents on Economics 24830, London School of Economics and Political Science, LSE Library.
  5. Wolfram Horneff & Raimond Maurer & Michael Stamos, 2006. "Life-Cycle Asset Allocation with Annuity Markets: Is Longevity Insurance a Good Deal?," Working Papers wp146, University of Michigan, Michigan Retirement Research Center.
  6. Joao F. Cocco, 2005. "Consumption and Portfolio Choice over the Life Cycle," Review of Financial Studies, Society for Financial Studies, vol. 18(2), pages 491-533.
  7. Kingston, Geoffrey & Thorp, Susan, 2005. "Annuitization and asset allocation with HARA utility," Journal of Pension Economics and Finance, Cambridge University Press, vol. 4(03), pages 225-248, November.
  8. S. Browne & M. A. Milevsky & T. S. Salisbury, 2003. "Asset Allocation and the Liquidity Premium for Illiquid Annuities," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 70(3), pages 509-526.
  9. Ivica Dus & Raimond Maurer & Olivia S. Mitchell, 2005. "Betting on Death and Capital Markets in Retirement: A Shortfall Risk Analysis of Life Annuities," NBER Working Papers 11271, National Bureau of Economic Research, Inc.
  10. Dus, Ivica & Maurer, Raimond H. & Mitchell, Olivia S., 2004. "Betting on death and capital markets in retirement: A shortfall risk analysis of life annuities versus phased withdrawal plans," CFS Working Paper Series 2004/01, Center for Financial Studies (CFS).
  11. Wolfram Horneff & Raimond Maurer & Olivia Mitchell & Ivica Dus, 2006. "Optimizing the Retirement Portfolio: Asset Allocation, Annuitization, and Risk Aversion," Working Papers wp124, University of Michigan, Michigan Retirement Research Center.
  12. Martin Feldstein & Elena Ranguelova, 2001. "Individual Risk in an Investment-Based Social Security System," American Economic Review, American Economic Association, vol. 91(4), pages 1116-1125, September.
  13. Charupat, Narat & Milevsky, Moshe A., 2002. "Optimal asset allocation in life annuities: a note," Insurance: Mathematics and Economics, Elsevier, vol. 30(2), pages 199-209, April.
  14. John F. Cogan & Olivia S. Mitchell, 2003. "Perspectives from the President's Commission on Social Security Reform," Journal of Economic Perspectives, American Economic Association, vol. 17(2), pages 149-172, Spring.
  15. Zvi Bodie & James E. Pesando, 1982. "Retirement Annuity Design in an Inflationary Climate," NBER Working Papers 0896, National Bureau of Economic Research, Inc.
  16. Gerrard, Russell & Haberman, Steven & Vigna, Elena, 2004. "Optimal investment choices post-retirement in a defined contribution pension scheme," Insurance: Mathematics and Economics, Elsevier, vol. 35(2), pages 321-342, October.
  17. Koijen, R.S.J. & Nijman, T.E. & Werker, B.J.M., 2006. "Optimal Portfolio Choice with Annuitization," Discussion Paper 2006-78, Tilburg University, Center for Economic Research.
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