How economists think differently from other humans

In economics, a theory has long prevailed that markets are based on people making rational choices. But behavioral economist Richard Thaler is seeking to prove that there is far more randomness to our financial decisions. Economics correspondent Paul Solman talks to Thaler to find out why we buy and to discuss Thaler’s new book, “Misbehaving.”
View the full story/transcript: / @pbsnewshour