Mark Koyama is an Assistant Professor of Economics at George Mason University and a Senior Fellow at George Mason University's Mercatus Center. He joins the show to discuss his research on the economic history of ancient Rome from the rise of the Roman Republic to the transition to the Roman Empire to the Empire's eventual fall. David's blog: http://macromarketmusings.blogspot.com/ Mark's Medium page: https://medium.com/@MarkKoyama Mark's GMU profile: http://economics.gmu.edu/people/mkoyama2 David's Twitter: @DavidBeckworth Mark's Twitter: @MarkKoyama Related links: "The Roman Market Economy" by Peter Temin (2012, Princeton University Press) http://press.princeton.edu/titles/9896.html "Peter Temin and the Malthusian Hypothesis for the Limits of Roman Growth" by Mark Koyama https://medium.com/@MarkKoyama/peter-temin-and-the-malthusian-hypothesis-for-the-limits-of-roman-growth-12489edce93a#.ijytapey2 "Why did the Roman Economy Decline?" by Mark Koyama https://medium.com/art-marketing/why-did-the-roman-economy-decline-225deada66ea#.xnwksin86