Property and Freedom Podcast, Episode 011.
This lecture is from the 2008 meeting of the Property and Freedom Society: “The Nature of Ancient Financial Markets,” by Sean Gabb (England). Print version: “Market Behaviour in the Ancient World: An Overview of the Debate”. PFS 2008 Playlist.
Original Youtube (low quality audio).
Note that the audio quality for 2006, 2008, and 2009 was poor and has been improved as much as possible by Podsworth Media; the audio quality improves slightly with the 2009 meeting and more significantly starting with the 2010 meeting.