Simplifying Choices in Defined Contribution Retirement Plan Design

November 2015
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Simplifying Choices

While a number of published studies have measured how the number and mix of fund options influence investment patterns in retirement accounts few, if any, have examined how plan participants react to a large reduction in investment choices.

Summary

Recent research indicates too many retirement plan options can create confusion, resulting in poorly informed decisions. In June 2012, a large U.S. nonprofit institution eliminated nearly half of its defined contribution retirement plan’s investment options and grouped the remaining investments into four simple categories. The TIAA Institute commissioned a study examining how streamlined participants (i.e., holders of funds that were eliminated) altered their equity share, risk exposure, fees paid and turnover patterns given the new investment menu.

Key Insights
Six months after the change, streamlined participants’ new investment allocations exhibited significantly lower turnover rates and expense ratios.
The reductions were even greater for streamlined participants who were previously classified by the researchers as active traders.
Based on reasonable assumptions, these reductions could lead to aggregate savings of $20.2 million for streamlined participants over a 20-year period, or in excess of $9,400 per participant.
Streamlined participants’ portfolios also held significantly less equity and exhibited significantly lower risks due to reduced exposures to most systematic risk factors.
The changes in portfolio characteristics largely remained intact 18 months after streamlining. Accordingly, the positive effects produced by the reform after the first six months were not undone by participant transactions over the subsequent 12 months.
Methodology

To analyze the change in participants’ behavior before and after the streamlining of funds, the authors created a data set listing participants’ account balances, asset allocations and contribution levels before the streamlining (June 30, 2012) and after  (December 31, 2012). They then added to this file information from public sources describing each investment fund’s equity fraction and style (e.g., bond, balanced, stock), as well as monthly return histories. The identity of individual participants was not revealed in the data set.

Streamlining investment plans could yield savings for participants up to $9,400 over a 20-year period.
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Simplifying Choices in Defined Contribution Retirement Plan Design

About TIAA Institute

The TIAA Institute helps advance the ways individuals and institutions plan for financial security and organizational effectiveness. The Institute conducts in depth research, provides access to a network of thought leaders, and enables those it serves to anticipate trends, plan future strategies and maximize opportunities for success.
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