The Impact of Longevity Improvements on U.S. Corporate Defined Benefit Pension Plans
This paper provides the first empirical assessment of the impact of life expectancy assumptions on the liabilities of private U.S. defined benefit (DB) pension plans. Using detailed actuarial and financial information provided by the U.S. Department of Labor, we construct a longevity variable for each pension plan and then measure the impact of varying life expectancy assumptions across plans and over time on pension plan liabilities. The results indicate that each additional year of life expectancy increases pension liabilities by about 3 to 4 percent. This effect is not only statistically highly significant but also economically: each year of additional life expectancy would increase private U.S. DB pension plan liabilities by as much as $84 billion.
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- Dushi, Irena & Friedberg, Leora & Webb, Tony, 2010.
"The impact of aggregate mortality risk on defined benefit pension plans,"
Journal of Pension Economics and Finance,
Cambridge University Press, vol. 9(04), pages 481-503, October.
- Irena Dushi & Leora Friedberg & Anthony Webb, 2006. "The Impact of Aggregate Mortality Risk on Defined Benefit Pension Plans," Working Papers, Center for Retirement Research at Boston College wp2006-21, Center for Retirement Research, revised Nov 2006.
- Pablo Antolín, 2007.
"Longevity Risk and Private Pensions,"
OECD Working Papers on Insurance and Private Pensions
3, OECD Publishing.
- Robert Novy‐Marx & Joshua Rauh, 2011. "Public Pension Promises: How Big Are They and What Are They Worth?," Journal of Finance, American Finance Association, vol. 66(4), pages 1211-1249, 08.
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