“Buy local,” “buy green,” “buy organic” . . . we cannot buy anything without considering its moral implications. How has consumption become suffused with right and wrong? How effective has the ethical-consumption movement been in changing market behavior? Stanford Professor and GoodGuide founder Dara O'Rourke, author of the Boston Review Book Shopping for Good, joins Richard Locke, head of the MIT Political Science Department, Scott Nova, Executive Director of the Worker Rights Consortium, and MIT Assistant Professor of Political Science Jens Hainmueller.