In accordance with the hermeneutical principles laid down in the introduction, this chapter will be devoted to an account of the theoretical models underlying the analysis and interpretation of the source material. Karl Polanyi’s empirical observations resulted in a series of ideal-types such as can be employed for the evaluation of the evidence from Naukratis in the following chapters. Polanyi’s works do not form one single, complete theory of economy; rather, they should be seen—as Sally Humphreys has put it so aptly—as sketches of areas within largely unexplored territory. It is of course true that George Dalton went to great lengths to develop Polanyi’s ideas further; the fact nevertheless remains that they continue to be far from accepted as paradigms for all further research in the field of economic anthropology or economic history. Indeed, such continuations of Polanyi’s approach have served only to limit unduly the openness that is the very advantage of his ideal-types. It is for this reason that one should return to Polanyi himself and employ his original ideas. His work has been taken up by only a few within the realm of the economic history of classical antiquity, something due partly to his own—problematic—statements on the subject of Greek history, and partly to lack of interest shown for anthropological approaches within ancient history. Polanyi disagreed with the view that markets were the ubiquitous form of economic organization—an attitude regarding the notion of the market as essential to the description of every economy—and also with the belief that it is the economic organization of any given society which determines its social, political, and cultural structures. For his part, Polanyi contended that an economy organized around the market first came into being with the Industrial Revolution, and that it was not until then that the two root meanings of the word ‘economic’—on the one hand, in the sense of provision with goods; on the other, in the sense of a thrifty use of resources, as in the words ‘economical’ and ‘economizing’—merged.