This paper investigates whether mutual fund families acting as service providers in 401(k) plans display favoritism toward their own affiliated funds. Using a hand-collected data set on the menu of investment options offered to plan participants, we show that fund deletions and additions are less sensitive to prior performance for affiliated than unaffiliated funds. We find no evidence that plan participants undo this affiliation bias through their investment choices. Finally, we find that the subsequent performance of poorly performing affiliated funds indicates that this favoritism is not information driven.Employer-sponsored defined contribution (DC) accounts have gained significant importance around the world. In the U.S., the value of 401(k) assets reached $4.6 trillion in 2014. 1 Such growth represents important business opportunities for mutual funds as they manage approximately half of the 401(k) investment pool. In addition to asset management, many fund families also provide administrative services to the plans and hence may play an active role in creating the menu of investment options for plans' participants.Fund families involved in a plan's design can face conflicting incentives. While they work with plan sponsors to create menus that serve the interests of plan participants, they also have an incentive to promote their own proprietary funds, even when more suitable options are available from other fund families. 2 Surprisingly, however, little is known about whether and how these conflicting incentives affect 401(k) menus. This is concerning given that DC accounts are the main source of retirement income for many of the plan beneficiaries.In this paper, we examine the conflicting incentives of mutual fund companies in the 401(k) industry. Focusing on menu changes, we argue that service providers may influence the 401(k) sponsor to include and subsequently keep their own affiliated funds on the investment menu.We further hypothesize that due to this provider influence, fund addition and deletion decisions may be less sensitive to the prior performance of affiliated funds as mutual fund families have an incentive to smooth money flows across their funds with differential past performance.To investigate this favoritism hypothesis, we hand collect information on the menu of mutual fund options offered in a large sample of 401(k) plans for the period 1998 to 2009 from annual filings of Form 11-K with the U.S. Securities and Exchange Commission (SEC).
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Accepted ArticleThis article is protected by copyright. All rights reserved. (2009), we collect information on the identity of the trustee of employer-sponsored 401(k) plans. Our sample includes plans that are trusteed by a mutual fund family as well as plans with nonmutual fund trustees. Most 401(k) plans in our sample adopt an open architecture whereby investment options include not only funds from the trustee's family ("affiliated funds") but also those from other mutual fund families ("unaffiliated funds"). An interesting feature of our data set is th...