Steven D. Levitt

Steven David Levitt (born May 29, 1967) is an American economist and co-author of the best-selling book Freakonomics and its sequels. Levitt is a professor emeritus at the University of Chicago. Levitt was the winner of the 2003 John Bates Clark Medal for his work in the field of crime. He was co-editor of the Journal of Political Economy published by the University of Chicago Press until December 2007. In 2009, Levitt co-founded TGG Group, a business and philanthropy consulting company. He was chosen as one of Time magazine's "100 People Who Shape Our World" in 2006. A 2011 survey of economics professors named Levitt their fourth favorite living economist under the age of 60, after Paul Krugman, Greg Mankiw and Daron Acemoglu.