Over the past 20 years, a trend toward index fund investing has emerged. Currently, more mutual fund assets are indexed to the S&P 500 than any other index. Prior research on downward-sloping demand curves suggests that widespread acceptance of S&P 500 index investing may push prices of...

This paper evaluates the performance of portfolios that dynamically adjust one's mix of risky and risk-free assets during retirement based on the performance of risky assets. We analyze these “buffer zone” portfolio decumulation strategies over various time periods from 1926 to 2009. We find...

Since 2011, Morningstar has issued Morningstar Analyst Ratings on many of the largest mutual funds in the United States. In June 2017, Morningstar launched the Morningstar Quantitative Rating™ to provide a forward‐looking rating on all mutual funds. Morningstar uses a “robo‐rater”...