Steven Levitt is an economics professor at the University of Chicago and the best-selling author of Freakonomics. In this talk, filmed at TED2004, he goes inside an inner-city gang to examine economic principles at work in the real world. (Recorded February 2004 in Monterey, CA. Duration: 22:00)

The actual economics of being a crack dealer in the 80s, in NYC.

Steven Levitt on TED Talks