"Sowell is misled, I believe, by his own basic strategy of taking familiar controversies about the market as the model for understanding a wide range of fundamental political disagreements. To begin with, the central virtues of competitive markets are not a matter of dispute among most of the theorists whom Sowell discusses. Rawls and Dworkin, for example, make clear their respect for the efficiency of markets as mechanisms for gathering information and allocating resources. What they question is the importance to be given to this kind of efficiency, as compared to other values such as equity and individual autonomy, when we are justifying economic and legal systems. The controversy is thus a moral one that cannot be avoided simply by “leaving it to the process” (i.e., to the market), since to do that would be already to decide the matter. The market is not a neutral means for deciding all social questions, and those who have doubts about its proper role need not claim that they can “do better” than the market in the sense of producing a more efficient outcome. Sowell’s strategy is also misleading in a further way: it overlooks important differences between competitive markets and other processes that he mentions, such as the common law, constitutional government, and the processes through which traditions and languages evolve. Three distinctive features of the market are important here. First, the ideal of the perfectly competitive market is a precise theoretical notion. No actual social institution can be identified with this ideal—since any such institution involves particular legal forms of property and contract, particular imperfections in knowledge, and particular limitations on freedom of entry into the market. But it is frequently quite clear which conditions move a system closer to perfect competition and which ones disrupt it. Second, market institutions (even actual, imperfect ones) produce their outcomes mechanically: prices and employment levels emerge as the result of competition, leaving little need for interpretation. Third, the efficiency of these outcomes is supposed to be a product of the process itself, not something with which any of the participants need be consciously concerned: agents in the perfectly competitive market are assumed to be assiduous pursuers of their own interests, but there is no need for anyone at any stage even to address the question of what would be best from a social point of view."