He has published articles on the ancient Greek economy, including “Trade, Traders, and the Economy of Athens in the Fourth Century B.C.E.,” in D.W. Tandy, ed., Prehistory and History: Ethnicity, Class, and Political Economy (Montreal 2001) 179-202 and “Ancient Greenbacks: Athenian Owls, the Law of Nikophon, and the Greek Economy” in J.R. Fears and E. Zarrow, eds., Coinage, Politics, and Ideology in the Ancient World (forthcoming). He is currently working on a book, tentatively entitled, Honor and Profit: Athenian Trade Policy and the Economy and Society of Greece, 415-307 B.C.E.