I like a good fight. Especially when it centers on mutual fund investors.
It pits Advisor Perspectives' Micheal Edesess and Wade Pfau in one corner and DALBAR's in the other as they defend and discuss whether mutual fund investors under perform their investments.
DALBAR provides a service to the investing community regarding historical analysis of investor returns since 1994.
Pfau and Adesess says DALBAR's math is wrong, stated here in these articles:
a-warning-to-the-advisory-profession-dalbar's-math-is-wronginvestors-do-not-underperform-their-investmentsDALBAR defends their work as stated here,
dalbar.com/QAIB, The click on "Truths about QAIB"