How should we think about growth and poverty? How important is the goal of reducing the proportion of the world's population living on less than a dollar a day? Does poverty persist because people lack skills or because they live in economic systems where skills are not rewarded? What is the role of experimental methods in understanding what reduces poverty? Author and economist Lant Pritchett of Harvard University talks with EconTalk host Russ Roberts about these questions and more in a wide-ranging discussion of how best to help the world's poorest people.