robinson left basketball partly on the advice of his princeton coach pete carril and pursued a business degree, earning an m.b.a. in finance from the university of chicago graduate school of business in 1992. robinson worked in the 1990s as a bond trader. he became a vice president at continental bank and worked there from 1990 to 1992. he was then a vice president, from 1992 to 1999, at morgan stanley dean witter. later, he was a managing director and partner at loop capital markets, a minority-owned boutique investment banking firm.