Steven D. LevittSteven D. Levitt, a professor of economics at the University of Chicago, was awarded the John Bates Clark Medal, given to the most influential American economist under forty. He is also a founder of The Greatest Good, which applies Freakonomics-stylethinking to business and philanthropy.Stephen J. Dubner, an award-winning journalist and radio and TV personality, has worked for the New York Times and published three non-Freakonomics books. He is the host of Freakonomics Radio and Tell Me Something I Don't Know. Read More Read Less