NBER Retirement Research Center Paper No. NB 13-02
Issued in November 2013
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This research was supported by the U.S. Social Security Administration through grant #5RRC08098400-05-00 to the National Bureau of Economic Research as part of the SSA Retirement Research Consortium, and by the National Institute on Aging, grant #P01 AG005842. We are grateful to Mark Iwry and Jack VanDerhei for helpful comments. Poterba is a trustee of the College Retirement Equity Fund (CREF), a provider of retirement income services. The findings and conclusions are solely those of the authors and do not represent the views of SSA, any agency of the Federal Government, the NBER Retirement Research Center, NBER, or TIAA-CREF.