Pete Boettke of George Mason University talks about the role of government and voluntary efforts in relieving suffering during and after a crisis such as Katrina. Drawing on field research he is directing into the aftermath of Hurricane Katrina, Boettke highlights the role of what he calls "civil society"--the informal, voluntary associations we make as individuals with each other to create community.

Don Boudreaux of George Mason University talks about the fundamental principles of economics and civilization: spontaneous order and law. Drawing on volume one of Friedrich Hayek's classic, Law, Legislation and Liberty, Boudreaux talks about the distinction between law and legislation, the appropriate role of judges, and how the fulfillment of our expectations allows us to pursue our goals and dreams.

Bryan Caplan and Russ Roberts discuss the economics of discrimination and government's regulation of labor markets. They talk about the role of the profit motive in reducing or eliminating discrimination and the role of government, particularly in European labor markets. When does government regulation reduce or enforce discrimination? How do other labor market regulations affect employment and unemployment? What is the impact on the European and American standard of living? Does money buy happiness? Does it depend on whether it is earned or received as welfare? These are some of the topics that come up in this wide-ranging conversation.

Author and journalist Virginia Postrel talks about how business competes for customers using style and beauty, going beyond price and the standard measures of quality. She looks at the role of appearance in our daily lives and the change from earlier times when style and beauty were luxuries accessible only to the wealthy. She also talks about her donation of a kidney to a friend and how that affected the intensity of her feelings about the policies surrounding organ donations.

Stanley Engerman of the University of Rochester talks about slavery throughout world history, the role it played (or didn't play) in the Civil War and the incentives facing slaves and slave owners. This is a wide-ranging, fascinating conversation with the co-author of the classic Time on the Cross (co-authored with Robert Fogel) and the forthcoming Slavery, Emancipation, and Freedom (LSU Press, 2007). Engerman knows as much as anyone alive about the despicable human arrangement called slavery and the vastness and precision of his knowledge is on display in this interview.

Sam Peltzman of the University of Chicago talks about his views on safety, regulation, unintended consequences and the political economy of bad regulation. The focus is on his pioneering studies of automobile safety and FDA pharmaceutical regulation and the perverse incentives that even good intentions can produce.

Richard Thaler of the U. of Chicago Graduate School of Business defends the idea of libertarian paternalism--how government might use the insights of behavioral economics to help citizens make better choices. Host Russ Roberts accepts the premise that individuals make imperfect choices but challenges Thaler on the likelihood that government, in practice, will improve matters. Along the way they discuss the design of Sweden's social security system, organ donations and whether professors at Cornell University are more or less like you and me.

Clint Bolick, co-founder of the Institute for Justice and President of the Alliance for School Choice makes the case for judicial activism. He and Russ Roberts discuss school choice, interstate wine sales, the Kelo eminent domain case and the crucial role the Supreme Court and the Constitution can and should play in securing economic liberty.

Skip Sauer of Clemson University and Russ Roberts discuss the economics of Michael Lewis's Moneyball. Lewis claims that the Oakland As found an undervalued asset--the ability of a baseball player to draw a walk--and used that insight to succeed while spending less money than their rivals. Is it true? Sauer and Roberts try to answer that and other questions. How competitive is the baseball industry? Why do some baseball skills get more attention than others? Plus, new feature: Mailbag!

Professor, Radio Host, and Syndicated Columnist Walter Williams of George Mason University talks with EconTalk's Russ Roberts about his early days as an economist, his controversial view of the Civil War, the insights of Adam Smith and Friedrich Hayek, and some deep but simple economic principles.

Larry Iannaccone of George Mason University talks with EconTalk's Russ Roberts about the economics of religion. Iannaccone explains why Americans are more religious than Europeans, why Americans became more religious after the colonies became the United States and why it can be rational and rewarding to make religious sacrifices. Join us for a fascinating exploration of the human side of religion.