dr. potarazu, thanks for coming on. always good to have you on the show. thank you so much. >> thank you, gerri. gerri: well we've got more coming up, including a shake-up in the mutual fund industry. what this means for your wallet. >>> and next, why grad students can school the undergrads in ballooning loan debt. we'll tell you about that. [ male announcer ] the founder of mercedes-benz once wrote something on a sheet of paper and placed it in his factory for all to see. ♪ four simple words where the meaning has never been lost. the challenge always accepted. and the calling forever answered. ♪ introducing the all-new 2014 s-class. mercedes-benz. the best or nothing. [ cellphones beeping ] ♪ [ cellphone rings ] hello? [ male announcer ] over 12,000 financial advisors. good, good. good over $700 billion dollars in assets under care. let me just put this away. [ male announcer ] how did edward jones get so big? could you teach kids that trick? [ male announcer ] by not acting that way. ok, st quarter... [ male announcer ] it's how edward jones makes sense