James Otteson of Yeshiva University talks with EconTalk host Russ Roberts about Adam Smith. The conversation begins with a brief sketch of David Hume and his influence on Smith and then turns to the so-called Adam Smith problem--the author of The Wealth of Nations appears to have a different take on human nature than the author of The Theory of Moral Sentiments. Smith worked on both books throughout his life, yet their perspectives seem so different. Otteson argues that the books focus on social behavior and the institutions that sustain that behavior--market transactions in The Wealth of Nations and moral behavior in The Theory of Moral Sentiments. Both books use the idea of emergent order to explain the evolution of both kinds of social behavior and social institutions. The conversation concludes with a discussion of what Smith got right and wrong.

Mike Munger of Duke University talks with EconTalk host Russ Roberts about the psychology, sociology, and economics of buying and selling. Why are different transactions that seemingly make both parties better off frowned on and often made illegal? In theory, all voluntary transactions should make both parties better off. But Munger argues that some transactions are more voluntary than others. Munger lists the attributes of a truly voluntary transaction, what he calls a euvoluntary transaction and argues that when transactions are not euvoluntary, they may be outlawed or seen as immoral. Related issues that are discussed include price gouging after a natural disaster, blackmail, sales of human organs, and the employment of low-wage workers.

Todd Buchholz, author of Rush: Why You Need and Love the Rat Race, talks with EconTalk host Russ Roberts about the ideas in the book. Buchholz argues that competition and striving for excellence is part of our evolutionary inheritance. He criticizes attempts to remake human beings into gentle creatures who long to return to an Eden-like serenity. He argues that it is action, creativity, and planning for the future that makes us happy. The discussion includes the implications of our interest in the future for theater and story-telling.

Barry Eichengreen of University of California, Berkeley and author of Exorbitant Privilege talks with EconTalk host Russ Roberts about the history and importance of the dollar as the dominant international currency. Eichengreen explains the advantages to the United States of the dollar's dominance, the historical circumstances that led to its dominance, and the likelihood that the dollar might be supplanted by a competitor. Along the way they discuss China's currency policy, the state of U.S. monetary policy, the causes of the crisis, the risk of inflation in the United States, and the future of the Federal Reserve.

William Easterly of New York University talks with EconTalk host Russ Roberts about the oft-heard claim that poor countries led by autocrats grow faster than poor countries that are democratic. Drawing on a recent paper, "Benevolent Autocrats," Easterly argues that while some autocracies do indeed grow very quickly, a much greater number do not. Yet, the idea that the messiness of democracy is inferior to a dictatorship remains seductive. Easterly gives a number of arguments for the perennial appeal of autocracy as a growth strategy. The conversation closes with a discussion of the limitations of our knowledge about growth and where that leaves policymakers.

Tim Harford, author and journalist, talks with EconTalk host Russ Roberts about Adapt, Harford's book on the virtues of failure and the trial and error process. Harford argues that success is more likely when there is experimentation and trial and error followed by adapting, rather than following a top-down, ex ante plan driven by expertise. The conversation looks at the what war can teach us about information, knowledge, and planning, the challenge of admitting mistakes, and the implications of trial and error for our daily lives.

William Byers of Canada's Concordia University and author of The Blind Spot talks with EconTalk host Russ Roberts about the nature of knowledge, science and mathematics. Byers argues that there is an inherent uncertainty about science and our knowledge that is frequently ignored. Byers contrasts a science of wonder with a science of certainty. He suggests that our knowledge of the physical world will always be incomplete because of the imperfection of models and human modes of thought relative to the complexity of the physical world. The conversation also looks at the implications of these ideas for teaching science and social science.

Bryan Caplan of George Mason University and EconLog talks with EconTalk host Russ Roberts about the ideas in Caplan's new book, Selfish Reasons to Have More Kids. Caplan argues that parents spend too much time trying to influence how their kids will turn out as adults. Using research on twins and adopted children, Caplan argues that nature dominates nurture and that parents have little lasting influence on many aspects of their children's lives. He concludes that parents should spend less time and energy trying to influence their children. If parenting takes less time, then have more kids, says Caplan. The conversation concludes with a discussion of whether a larger population is bad for the planet.

John Papola of Emergent Order talks with EconTalk host Russ Roberts about their collaboration creating rap videos based on the ideas of John Maynard Keynes and F. A. Hayek. Their first was "Fear the Boom and Bust" which was released January 25, 2010. This past week they released "Fight of the Century." The latest video discusses the overarching differences between the philosophies of Keynes and Hayek and their views on whether government spending promotes recovery from an economic downturn and whether it leads to prosperity. In this conversation, Papola and Roberts discuss some of the underlying ideas in the video--whether the military spending of World War II ended the Great Depression, the debate between Malthus and Say and their influence on Keynes and Hayek, and the fundamental differences between Keynes and Hayek in how economic prosperity is created.

Ariel Rubinstein of Tel Aviv University and New York University talks with EconTalk host Russ Roberts about the state of game theory and behavioral economics, two of the most influential areas of economics in recent years. Drawing on his Afterword for the 60th anniversary edition of Von Neumann and Morgenstern's Theory of Games and Economic Behavior, Rubinstein argues that game theory's successes have been quite limited. Rubinstein, himself a game theorist, argues that game theory is unable to yield testable predictions or solutions to public policy problems. He argues that game theorists have a natural incentive to exaggerate its usefulness. In the area of behavioral economics, Rubinstein argues that the experimental results (which often draw on game theory) are too often done in ways that are not rigorous. The conversation concludes with a plea for honesty about what economics can and cannot do.