For my class this spring, the TW Smith Foundation was kind enough to provide generous support for some outside speakers.
With the permission of those speakers, I have created podcasts of their lectures to the class. Here they are. A note of warning: I did the recording and production. So the sound quality is something less than perfect, even though the speeches themselves were first rate.
John David Lewis: Podcast (Professor at Duke's PPE Program)
"The Role of Commerce in the Ancient World"
Timur Kuran: Podcast (Professor at Duke in Economics and Political Science)
"The Long Divergence: Economic Institutions in the Islamic World"
William Dougan: Podcast (Professor in the John E. Walker Department of Economics at Clemson University)
"The Economist and the State: The Chicago View"
Kevin Grier: Podcast (Professor in the Department of Economics at University of Oklahoma)
"U.S. Monetary Policy: Past, Present, and Future"
(UPDATE: A reader was kind enough to point out that one might look here for 19 other useful podcasts on economics. And I have to (blush) agree.)