a1 Anne Mayhew and Walter C. Neale are Professors of Economics and David W. Tandy is Assistant Professor of Classics at The University of Tennessee, Knoxville, Tennessee 37996. Neale was a student of Karl Polanyi's (1947–1951), and then a colleague in the Columbia University /Ford Foundation Interdisciplinary Project (1953–1958) that produced Trade and Market in the Early Empires (see footnote 3 for full citation). The authors wish to thank K. Benson, K. Brown, and E Friberg, and the editors of this JOURNAL for their advice.