Katy Milkman on How to Change

Behavioral scientist Katy Milkman of the Wharton School at the University of Pennsylvania talks about her book How to Change with EconTalk host Russ Roberts. What can we learn from research in psychology and behavioral economics about breaking the habits we want to change? Is that research reliable? And should Russ Roberts accept being overweight or keep working at finding the thinner man trying to get out?