<a gi-track='captionPersonalityLinkClicked' href=/galleries/search?phrase=Michelle+Rhee&family=editorial&specificpeople=6520372 ng-click='$event.stopPropagation()'>Michelle Rhee</a>, former chancellor of the District of Columbia public school system, smiles during a panel discussion at Stanford University's SIEPR Economic Summit in Palo Alto, California, U.S., on Friday, March 11, 2011. Rhee and Caroline Hoxby, a professor of economics at Stanford University, discussed the relationship between education and economics. Photographer: Tony Avelar/Bloomberg via Getty Images