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124 Yale L. J. 1476 (2014-2015)
Beyond Diversification: The Pervasive Problem of Excessive Fees and Dominated Funds in 401(k) Plans

handle is hein.journals/ylr124 and id is 1520 raw text is: IAN AYRES & QUINN CURTIS
Beyond Diversification: The Pervasive Problem of
Excessive Fees and Dominated Funds in 4o1(k)
Plans
ABSTRACT. Notwithstanding ERISA's fiduciary requirements, a significant portion of
401(k) plans establish investment menus that predictably lead investors to hold high-cost portfo-
lios. Using data from more than 3,500 40i(k) plans with more than $12o billion in assets, we
provide evidence that fees and menu restrictions in an average plan lead to a cost of seventy-eight
basis points in excess of index funds. We also document a wide array of dominated menu op-
tions, which we define as funds that make no substantial contribution to menu diversity but
charge fees significantly higher than those of comparable funds in the marketplace. We argue
that courts should read existing fiduciary-duty law to challenge plans that imprudently include
high-cost or dominated options, even if other options are available in the plan menu. But be-
cause heightened fiduciary duties are unlikely by themselves to solve the problem of excess fees
and dominated funds, we also propose three additional structural reforms. We argue that low-
cost default options be made universally available, that investors be permitted to roll assets out of
designated high-cost plans, and that participants be required to demonstrate financial sophistica-
tion before investing in higher-cost funds.
A U T H O R S. Ian Ayres is William K. Townsend Professor, Yale Law School. Quinn Curtis is
Associate Professor, University of Virginia School of Law. We would like to thank Ryan Bubb,
Rich Hynes, Michael Gilbert, Kate McBride, John Morley, and Jill Fisch, as well as workshop
participants at the Darden School of Business, Yale Law School, and the Department of Labor
for comments. We also thank Patrick Hayden, Daniel Nadratowski, and Ben Picozzi for excellent
research.

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