Terence D’Altroy and Timothy K. Earle, “State Finance, Wealth Finance, and Storage in the Inka Political Economy,” Current Anthropology 26 (1985), pp. 187–206; and Paul Halstead, “The Mycenaean Palatial Economy: Making the Most of the Gaps in the Evidence,” Proceedings of the Cambridge Philological Society 38 (1992), pp. 57–86.