Mutual funds hold 32% of the U.S. equity market and comprise 58% of retirement savings, yet retail investors consistently make poor choices when selecting funds. Theory suggests that poor choices are partially due to mutual fund managers creating unnecessarily complex disclosures and fee...

We present causal evidence that non-fundamental correlated demand exerts a first-order impact on style returns. Mutual fund investors chase fund performance via Morningstar ratings, regardless of the rating methodology. Until June 2002, ratings depended on fund returns without any style...

We show that mutual fund ratings generate correlated demand that creates systematic price fluctuations. Mutual fund investors chase fund performance via Morningstar ratings. Until June 2002, funds pursuing the same investment style had highly correlated ratings. Therefore, rating-chasing...