Julian Koplin, drawing extensively on empirical data, has argued that vendors, even in well-regulated kidney markets, are likely to be significantly harmed. I contend that his reasoning to this conclusion is dangerously mistaken. I highlight two failures. First, Koplin is insufficiently attentive to the differences between existing markets and the regulated markets proposed by advocates. On the basis of this error, he wrongly concludes that many harms will persist even in a well-regulated system. Second, Koplin misunderstands the utilitarian assessment of (...) the market. He focuses on the costs and benefits of the transaction for the vendor. But, the relevant comparison is between an individual’s welfare across different courses of action, namely, vending and the nonvending alternative. Although Koplin’s empirically informed contribution is a welcome addition to this literature, the mistakes that pervade his interpretation of the data demand correction. (shrink)

A significant debate has developed around the question: What are the moral limits of the market? This paper argues that this debate proceeds on a mistake. Both those who oppose specific markets and those who defend them, adopt the same deficient approach. Participants illicitly proceed from an assessment of the transactions making up a market to a judgment of that market’s permissibility. This inference is unlicensed. We may know everything there is to know about the transactions in a specific market—they (...) might all be absolutely bad—but we will not yet know whether that market should be prohibited. To discern this, to establish that intervention in to some specific market is justifiable, one must supply a rather different assessment. One must compare the outcome in which that market is permitted with the best outcome available in its absence. None in this debate has offered such a judgment. (shrink)

Felix Pinkert has proposed a solution to the no-difference problem for AC. He argues that AC should be supplemented with a requirement that agents’ optimal acts be modally robust. We disagree.