BlackRock (NYSE:BLK) is the world's biggest asset manager, but is the company jealous of the returns generated by its former partner, Blackstone (NYSE:BX)? In this segment of The Motley Fool's financials-focused show, Where the Money Is, banking analysts Matt Koppenheffer and David Hanson discuss the possibility of BlackRock branching out into higher margin businesses and what that would mean for shareholders.