Semi-Daily Journal Archive

The Blogspot archive of the weblog of J. Bradford DeLong, Professor of Economics and Chair of the PEIS major at U.C. Berkeley, a Research Associate of the National Bureau of Economic Research, and former Deputy Assistant Secretary of the U.S. Treasury.

Saturday, September 09, 2006

Alicia Munnell and Company Find Defined-Benefit Pensions Outperforming 401(k)s

401(k)s are not the greatest idea in the world:

Angry Bear: Investment Returns: Defined Benefit vs. 401(k) Plans: The always excellent Alicia Munnell and her co-authors Mauricio Soto, Jerilyn Libby, and John Prinzivalli have just released an interesting analysis:

The bottom line is that over the period 1988-2004 defined benefit plans outperformed 401(k) plans by one percentage point. This outcome occurred despite the fact that 401(k) plans held a higher portion of their assets in equities during the bull market of the 1990s. Part of the explanation may rest with higher fees, which are deducted before returns are reported to participants. But the one percentage point shortfall understates the investment problem in 401(k) plans, since an aggregate number does not reflect the fact that more than half of participants in 401(k) plans do not follow the prudent investment strategy of diversifying their holdings. Finally, the available data suggest that IRAs produce even lower returns than 401(k) plans, which, if true, implies trouble ahead given the massive amount of money that is being rolled over into these accounts.

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