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The Role of Company Stock in Defined Contribution Plans

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  • Olivia S. Mitchell
  • Stephen P. Utkus

Abstract

This paper explores the risks and benefits of holding company stock in employer-sponsored defined contribution (DC) retirement plans. We address three questions: (1) What is the role and function of company stock in such plans? (2) Who might be affected by enhanced portfolio diversification in such plans? and (3) What mechanisms exist, or might be developed, to enhance portfolio diversification if more diversification were deemed useful? Firms offer company stock within DC plans in an effort to enhance economic performance, though evidence is mixed on productivity gains from stock ownership. We demonstrate that concentrated stock positions arise most often in larger firms' DC plans where sponsors direct employer contributions and restrict diversification. Stock concentration also arises because participants systematically underestimate the risk of employer stock and over-rely on its past performance in making investment decisions. In a retirement system with concentrated stock positions, there will always be some participants who forfeit DC plan savings to firm bankruptcy. Encouraging plan diversification mitigates this risk, but it could also induce some companies to redirect plan contributions to other forms of stock compensation or to replace stock contributions with cash compensation. We conclude by describing policy tools that might be used to encourage diversification and discuss conditions for their effective implementation.

Suggested Citation

  • Olivia S. Mitchell & Stephen P. Utkus, 2002. "The Role of Company Stock in Defined Contribution Plans," NBER Working Papers 9250, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:9250
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    References listed on IDEAS

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    5. Shlomo Benartzi, 2001. "Excessive Extrapolation and the Allocation of 401(k) Accounts to Company Stock," Journal of Finance, American Finance Association, vol. 56(5), pages 1747-1764, October.
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    Cited by:

    1. Gary V. Engelhardt & Anil Kumar, 2007. "Employer Matching and 401(k) Saving: Evidence from the Health and Retirement Study," NBER Chapters, in: Public Policy and Retirement, Trans-Atlantic Public Economics Seminar (TAPES), pages 1920-1943, National Bureau of Economic Research, Inc.
    2. James M. Poterba & Joshua Rauh & Steven F. Venti, 2005. "Utility Evaluation of Risk in Retirement Saving Accounts," NBER Chapters, in: Analyses in the Economics of Aging, pages 13-58, National Bureau of Economic Research, Inc.
    3. Posavac, Steven S. & Ratchford, Mark & Bollen, Nicolas P.B. & Sanbonmatsu, David M., 2019. "Premature infatuation and commitment in individual investing decisions," Journal of Economic Psychology, Elsevier, vol. 72(C), pages 245-259.
    4. Yan Li & Bao Sun & Shangyao Yu, 2019. "Employee stock ownership plan and stock price crash risk," Frontiers of Business Research in China, Springer, vol. 13(1), pages 1-33, December.
    5. Lu, Xiaomeng & Guo, Jiaojiao & Gan, Li, 2020. "International comparison of household asset allocation: Micro-evidence from cross-country comparisons," Emerging Markets Review, Elsevier, vol. 43(C).
    6. John Beshears & James J. Choi & David Laibson & Brigitte C. Madrian, 2009. "The Importance of Default Options for Retirement Saving Outcomes: Evidence from the United States," NBER Chapters, in: Social Security Policy in a Changing Environment, pages 167-195, National Bureau of Economic Research, Inc.
    7. James M. Poterba, 2003. "Employer Stock and 401(k) Plans," American Economic Review, American Economic Association, vol. 93(2), pages 398-404, May.
    8. Jeffrey R. Brown & Zoran Ivković & Paul A. Smith & Scott Weisbenner, 2004. "The geography of stock market participation: the influence of communities and local firms," Finance and Economics Discussion Series 2004-22, Board of Governors of the Federal Reserve System (U.S.).
    9. Engelhardt, Gary V. & Madrian, Brigitte C., 2004. "Employee Stock Purchase Plans," National Tax Journal, National Tax Association;National Tax Journal, vol. 57(2), pages 385-406, June.
    10. Tran, Anh & Wang, Pingle, 2023. "Barking up the wrong tree: Return-chasing in 401(k) plans," Journal of Financial Economics, Elsevier, vol. 148(1), pages 69-90.
    11. Andrew A. Samwick & Jonathan Skinner, 2004. "How Will 401(k) Pension Plans Affect Retirement Income?," American Economic Review, American Economic Association, vol. 94(1), pages 329-343, March.

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    More about this item

    JEL classification:

    • G2 - Financial Economics - - Financial Institutions and Services
    • G3 - Financial Economics - - Corporate Finance and Governance

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