In this article, I argue that the small-improvement fails since some of the comparisons involved in the argument might be indeterminate. I defend this view from two objections by Ruth Chang, namely the argument from phenomenology and the argument from perplexity. There are some other objections to the small-improvement argument that also hinge on claims about indeterminacy. John Broome argues that alleged cases of value incomparability are merely examples of indeterminacy in the betterness relation. The main premise of his argument is the much-discussed collapsing principle. I offer a new counterexample to this principle and argue that Broome's defence of the principle is not cogent. On the other hand, Nicolas Espinoza argues that the small-improvement argument fails as a result of the mere possibility of evaluative indeterminacy. I argue that his objection is unsuccessful.

In this article I assess the ability of motivational accounts of paternalism to respond to a particular challenge: can its proponents adequately explain the source of the distinctive form of disrespect that animates this view? In particular I examine the recent argument put forward by Jonathan Quong that we can explain the presumptive wrong of paternalism by relying on a Rawlsian account of moral status. I challenge the plausibility of Quong's argument, claiming that although this approach can provide a clear response to the explanatory challenge, it is only successful in doing so when it relies on the strength of its rival: the argument from personal autonomy. In doing so I illustrate that such responses are conceptually dependent on an account of respect for persons, and thus much of the relevant controversy is actually disagreement over how we respect other individuals.

This article addresses the so-called ‘claimability objection’ to human rights. Focusing specifically on the work of Onora O'Neill, the article challenges two important aspects of her version of this objection. First: its narrowness. O'Neill understands the claimability of a right to depend on the identification of its duty-bearers. But there is good reason to think that the claimability of a right depends on more than just that, which makes abstract (and not welfare) rights the most natural target of her objection (section II). After examining whether we might address this reformulated version of O'Neill's objection by appealing to the specificity afforded to human rights in international, regional and domestic law (in section III), the article challenges a second important feature of that objection by raising doubts about whether claimability is a necessary feature of rights at all (section IV). Finally, the article reflects more generally on the role of abstraction in the theory and practice of human rights (section V). In sum, by allaying claimability-based concerns about abstract rights, and by illustrating some of the positive functions of abstraction in rights discourse, the article hopes to show that abstract rights are not only theoretically coherent but also useful and important.

Edgeworth's original mathematical formalization of utilitarianism as presented in his works of 1877–81 illustrates an intriguing phase in the mutually intertwined history of economics and utilitarianism. In this article I analyse Edgeworth's motivations and point to its interesting implications. In particular, it is pointed out that the starting point of Edgeworth's project had little to do with the field of economics, but formed part of an attempt to present utilitarianism in the most scientific way possible; an attempt made in the context of intensive dispute between the three opposing camps in the field of ethics at the time. Nevertheless, the project concluded with the monograph Mathematical Psychics (1881) that embodied an original relationship between economics and utilitarianism.