Abhijit Banerjee, has worked in dozens of countries trying to better understand the economics of poverty. He argues anti-poverty policies often fail because of inadequate understanding of the decisions poor people make. Banerjee Participated in a seminar on Sustainable Economic Development during the IMF World-Bank Spring meetings. In this podcast, we discuss why so little is known about a billion poor people in the world. Contributors: Abhijit Banerjee, Ford Foundation International Professor of Economics at the Massachusetts Institute of Technology, and author of Poor Economics, A radical Rethinking of the Way to Fight Global Poverty