Free-market thinking had reached a low point in the waning days of World War II, but some of the world’s best advocates for free markets and liberty helped rebuild interest in and knowledge of the value of markets through a group called the Mont Pelerin Society.

Formed 65 years ago by a group of fewer than 40 men, the society continues its work today. In the latest installment of the Hayek Lecture Series at Duke University, assistant professor Angus Burgin of Johns Hopkins University discussed the origins of the Mont Pelerin Society and its changing focus over the course of its early years.

Click play below to watch the hourlong lecture and question-and-answer session, which was titled “Planning Against Planning: The Mont Pelerin Society and the Origins of Neoliberalism.”