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The Implied Longevity Yield: A Note on Developing an Index for Life Annuities

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  • Moshe A. Milevsky

Abstract

I develop an index for tracking the dynamic behavior of life (pension) annuity payouts over time, based on the concept of self‐annuitization. Our implied longevity yield (ILY) value is defined equal to the internal rate of return (IRR) over a fixed deferral period that an individual would have to earn on their investable wealth if they decided to self‐annuitize using a systematic withdrawal plan. A larger ILY number indicates a greater relative benefit from immediate annuitization. I use age 65—with a 10‐year period certain—compared against the same annuity at age 75 as the standard benchmark for the index, and calibrate to a comprehensive time series of weekly (Canadian) life annuity quotes from 2000 through 2004. I find that during this period the ILY varied from 5.45 percent to 6.90 percent for males and from 5.00 percent to 6.42 percent for females and was highly correlated with a duration‐weighted average yield of 10‐year and long‐term Government of Canada bonds. I believe our ILY metric can help promote and explain the benefits of acquiring lifetime payout annuities by translating the abstract‐sounding longevity insurance into more concrete and measurable financial rates of return.

Suggested Citation

  • Moshe A. Milevsky, 2005. "The Implied Longevity Yield: A Note on Developing an Index for Life Annuities," Journal of Risk & Insurance, The American Risk and Insurance Association, vol. 72(2), pages 302-320, June.
    • Handle: RePEc:bla:jrinsu:v:72:y:2005:i:2:p:302-320
    DOI: 10.1111/j.1539-6975.2005.00124.x
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    References listed on IDEAS

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    1. 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.
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    Cited by:

    1. Thomas Post & Helmut Gründl & Hato Schmeiser, 2006. "Portfolio management and retirement: what is the best arrangement for a family?," Financial Markets and Portfolio Management, Springer;Swiss Society for Financial Market Research, vol. 20(3), pages 265-285, September.
    2. Stone Charles A. & Zissu Anne, 2007. "Managing Viagers Securitization and Life Extension Risk," Asia-Pacific Journal of Risk and Insurance, De Gruyter, vol. 2(1), pages 1-13, May.
    3. Horneff, Wolfram & Maurer, Raimond & Rogalla, Ralph, 2010. "Dynamic portfolio choice with deferred annuities," Journal of Banking & Finance, Elsevier, vol. 34(11), pages 2652-2664, November.
    4. Yang, Jaehwan & Yuh, Yoonkyung, 2019. "Reverse Mortgages for Managing Longevity Risk in Korea," Hitotsubashi Journal of Economics, Hitotsubashi University, vol. 60(1), pages 21-40, June.
    5. Yuh, Yoonkyung & Yang, Jaehwan, 2011. "The Valuation and Redistribution Effect of the Korea National Pension," Hitotsubashi Journal of Economics, Hitotsubashi University, vol. 52(1), pages 113-142, June.

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