QUOTE : Economics assumes a division between different spheres of human behavior that, among people like the Gunwinngu and the Nambikwara, simply does not exist. These divisions in turn are made possible by very specific institutional arrangements- the existence of lawyers, prisons, and police- to ensure that even people who don't like each other very much, who have no interest in developing any kind of ongoing relationship, but are simply interested in getting their hands on as much of the others' possessions as possible, will nonetheless refrain from the most obvious expedient (theft). This in turn allows us to assume that life is neatly divided between the marketplace, where we do our shopping, and the "sphere of consumption," where we concern ourselves with music, feasts, and seduction. In other words, the vision of the world that forms the basis of the economics textbooks, which Adam Smith played so large a part in promulgating, has by now become so much a part of our common sense that we find it hard to image any other possible arrangement.