This paper presents a thorough evaluation of target date funds for the period 2010-2020. These funds have grown enormously in assets, reaching $1.4 trillion by the end of 2019. They account for approximately 24 percent of all of the assets in 401(k) accounts. The paper reports on the results of...

This paper evaluates a new variant of the popular target date funds used in employer-based retirement savings plans. We call this new variant a "target retirement plan." Instead of increasing the allocation to bond funds as retirement approaches, a target retirement fund gradually purchases...