Former CEO of Cargill, the largest privately-held company in America, Greg Page, discusses the role of prices in global food markets, government's role in agriculture, the locavore movement, and genetically modified organisms (GMOs) in an engaging conversation with EconTalk host Russ Roberts.

Joshua Greene, of Harvard University and author of Moral Tribes: Emotion, Reason, and the Gap Between Us and Them, talks with EconTalk host Russ Roberts about morality and the challenges we face when our morality conflicts with that of others. Topics discussed include the difference between what Greene calls automatic thinking and manual thinking, the moral dilemma known as "the trolley problem," and the difficulties of identifying and solving problems in a society that has a plurality of values. Greene defends utilitarianism as a way of adjudicating moral differences.

James Tooley, Professor of Education at Newcastle University, talks to EconTalk host Russ Roberts about low-cost for-profit private schools in the slums and rural areas of poor countries. Tooley shows how surprisingly widespread private schools are for the poor and how effective they are relative to public schools where teacher attendance and performance can be very disappointing. The conversation closes with whether public schooling should remain the ideal in poor countries.

Joshua Angrist of the Massachusetts Institute of Technology talks to EconTalk host Russ Roberts about the craft of econometrics--how to use economic thinking and statistical methods to make sense of data and uncover causation. Angrist argues that improvements in research design along with various econometric techniques have improved the credibility of measurement in a complex world. Roberts pushes back and the conversation concludes with a discussion of how to assess the reliability of findings in controversial public policy areas.

Gary Marcus of New York University talks with EconTalk host Russ Roberts about the future of artificial intelligence (AI). While Marcus is concerned about how advances in AI might hurt human flourishing, he argues that truly transformative smart machines are still a long way away and that to date, the exponential improvements in technology have been in hardware, not software. Marcus proposes ways to raise standards in programming to reduce mistakes that would have catastrophic effects if advanced AI does come to fruition. The two also discuss "big data's" emphasis on correlations, and how that leaves much to be desired.

James Otteson of Wake Forest University talks to EconTalk host Russ Roberts about his new book, The End of Socialism. Otteson argues that socialism (including what he calls the "socialist inclination") is morally and practically inferior to capitalism. Otteson contrasts socialism and capitalism through the views of G. A. Cohen and Adam Smith. Otteson emphasizes the importance of moral agency and respect for the individual in his defense of capitalism. The conversation also includes a discussion of the deep appeal of the tenets of socialism such as equality and the impulse for top-down planning.

Nick Bostrom of the University of Oxford talks with EconTalk host Russ Roberts about his book, Superintelligence: Paths, Dangers, Strategies. Bostrom argues that when machines exist which dwarf human intelligence they will threaten human existence unless steps are taken now to reduce the risk. The conversation covers the likelihood of the worst scenarios, strategies that might be used to reduce the risk and the implications for labor markets, and human flourishing in a world of superintelligent machines.

Emily Oster of the University of Chicago talks with EconTalk host Russ Roberts about why U.S. infant mortality is twice that in Finland and high relative to the rest of the world, given high income levels in the United States. The conversation explores the roles of measurement and definition along with culture to understand the causes of infant mortality in the United States and how it might be improved.

Nobel Laureate Vernon L. Smith of Chapman University talks to EconTalk host Russ Roberts about how Adam Smith's book, The Theory of Moral Sentiments has enriched his understanding of human behavior. He contrasts Adam Smith's vision in Sentiments with the traditional neoclassical models of choice and applies Smith's insights to explain unexpected experimental results from the laboratory.

Becky Liddicoat Yamarik, Hospice Palliative Care Physician, talks to EconTalk host Russ Roberts about the joys and challenges of providing care for terminally ill patients. The two discuss the services palliative care provides, how patients make choices about quality of life and when to stop receiving treatment, conflicts of interest between patients and families, and patients' preparedness to make these decisions.