See Philip Mayerson, “Grain Prices in Late Antiquity and the Nature of the Evidence,” in Ziony Zevit, Seymour Gitin and Michael Sokoloff, eds., Solving Riddles and Untying Knots: Biblical, Epigraphic, and Semitic Studies in Honor of Jonas C. Greenfield (Winona Lake, IN: Eisenbrauns, 1995), pp. 443–449.