So, remember me mentioning the local Boglehead gathering, and the local university professor? He just sent our mailing group a link to someone who cited one of the papers that he and a grad student did recently.
Kind of high brow stuff. DFA is well-regarded and often-mentioned in the Boglehead forums, although I never learned the details of it. Essentially though, this just shows how index funds in general are still quite competitive out there. Best of all, you don't have to be an Economics professor to invest as well as they do.