Rationality, a cornerstone of modern economic theory, is increasingly called into question by new behavioral research. By looking at subsistence societies, this biological anthropologist reaffirms that humans can act in their own self-interest. Bringing an evolutionary perspective to formal decision theory, Dr. Jones explains what we can learn from the most rational people in the world.

The Interval welcomes award-winning journalist Mary Kay Magistad (formerly of PRI's The World and NPR, now host of the Whose Century Is It? podcast) as guest moderator. This event was co-presented by the Center for Advanced Study in the Behavioral Sciences (CASBS), where Jones was a 02015-16 fellow.