FYI: Financial researchers have uncovered many relationships between investment factors and security returns. For investors, an important question is whether these relationships will continue after the research on them has been published. Said another way, should we expect a premium to continue outside of the sample period if everyone knows about it?
Regards,
Ted
http://www.etf.com/sections/index-investor-corner/swedroe-when-popularity-kills?nopaging=1
