Mark Koyama is an Assistant Professor of Economics at George Mason University and a Senior Fellow at George Mason University\u2019s 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\u2019s eventual fall. David\u2019s blog: http://macromarketmusings.blogspot.com/ Mark\u2019s Medium page: https://medium.com/@MarkKoyama Mark\u2019s GMU profile: http://economics.gmu.edu/people/mkoyama2 David\u2019s Twitter: @DavidBeckworth Mark\u2019s Twitter: @MarkKoyama Related links: \u201cThe Roman Market Economy\u201d by Peter Temin (2012, Princeton University Press) http://press.princeton.edu/titles/9896.html \u201cPeter Temin and the Malthusian Hypothesis for the Limits of Roman Growth\u201d by Mark Koyama https://medium.com/@MarkKoyama/peter-temin-and-the-malthusian-hypothesis-for-the-limits-of-roman-growth-12489edce93a#.ijytapey2 \u201cWhy did the Roman Economy Decline?\u201d by Mark Koyama https://medium.com/art-marketing/why-did-the-roman-economy-decline-225deada66ea#.xnwksin86