Kitcher has proposed an ideal-theory account—well-ordered science (WOS)— of the collective good that science’s research agenda should promote. Against criticism regarding WOS’s action-guidance, Kitcher has advised critics not to confuse substantive ideals and the ways to arrive at them, and he has defended WOS as a necessary and useful ideal for science policy. I provide a distinction between two types of ideal-theories that helps clarifying WOS’s elusive nature. I use this distinction to argue that the action-guidance problem that WOS faces (...) remains even under the aims/means distinction, because the WOS’s failure is more basic than critics have suggested. (shrink)

Ex-ante deontology is an attempt to combine deontological constraints on doing or intending harm with the idea that one should act in everyone’s interest if possible. I argue that ex-ante deontology has serious problems in cases where multiple decisions are to be made over time. I then argue that these problems force us to choose between commonsense deontological morality and a more consequentialist morality. I suggest that we should choose the latter.

Prioritarianism is a variant of utilitarianism. It differs from utilitarianism in that benefiting individuals matters more the worse off these individuals are. On this view, there are two standard ways of handling risky prospects: Ex-Post Prioritarianism adjusts for prioritizing the worse off in final outcomes and then values prospects by the expectation of the sum total of those adjusted values, whereas Ex-Ante Prioritarianism adjusts for prioritizing the worse off on each individual's expectation and then values prospects by the sum total (...) of those adjusted expectations. A standard objection to Ex-Post Prioritarianism is that it violates Ex-Ante Pareto, that is, it prescribes choices that worsen the expectations for everyone. In this article, I argue that Ex-Ante Prioritarianism suffers from much the same problem: it violates a sequential version of Ex-Ante Pareto, that is, it prescribes sequences of choices that worsen the expectations for everyone. (shrink)

The original position together with the veil of ignorance have served as one of the main methodological devices to justify principles of distributive justice. Most approaches to this topic have primarily focused on the single person decision-theoretic aspect of the original position. This paper, in contrast, will directly model the basic structure and the economic agents therein to project the economic consequences and social outcomes generated either by utilitarianism or Rawls’s two principles of justice. It will be shown that when (...) the differences in people’s productive abilities are sufficiently great, utilitarianism dominates Rawls’s two principles of justice by providing a higher level of overall well-being to every member of society. Whenever this is the case, the parties can rely on the Principle of Dominance (which is a direct implication of instrumental rationality) to choose utilitarianism over Rawls’s two principles of justice. Furthermore, when this is so, utilitarianism is free from one of its most fundamental criticisms that it ‘does not take seriously the distinction between persons’ (Rawls 1971 [1999]: 24). (shrink)

John Rawls famously argued that the Difference Principle would be chosen by any rational agent in the original position. Derek Parfit and Philippe Van Parijs have claimed, contra Rawls, that it is not the Difference Principle which is implied by Rawls’ original position argument, but rather the more refined Lexical Difference Principle. In this paper, we study both principles in the context of social choice under ignorance. First, we present a general format for evaluating original position arguments in this context. (...) We argue that in this format, the Difference Principle can be specified in three conceptually distinct ways. We show that these three specifications give the same choice recommendations, and can be grounded in an original position argument in combination with the well-known maximin rule. Analogously, we argue that one can give at least four plausible specifications of the Lexical Difference Principle, which however turn out to give different recommendations in concrete choice scenarios. We prove that only one of these four specifications can be grounded in an original position argument. Moreover, this one specification seems the least appealing from the viewpoint of distributive justice. This insight points towards a general weakness of original position arguments. (shrink)

We study original position arguments in the context of social choice under ignorance. First, we present a general formal framework for such arguments. Next, we provide an axiomatic characterization of social choice rules that can be supported by original position arguments. We illustrate this characterization in terms of various well-known social choice rules, some of which do and some of which do not satisfy the axioms in question. Depending on the perspective one takes, our results can be used to argue (...) against certain rules, against Rawlsian theories of procedural fairness, or in support of richer, multidimensional models of individual choice. (shrink)

Epistemic states of uncertainty play important roles in ethical and political theorizing. Theories that appeal to a “veil of ignorance,” for example, analyze fairness or impartiality in terms of certain states of ignorance. It is important, then, to scrutinize proposed conceptions of ignorance and explore promising alternatives in such contexts. Here, I study Lerner’s probabilistic egalitarian theorem in the setting of imprecise probabilities. Lerner’s theorem assumes that a social planner tasked with distributing income to individuals in a population is “completely (...) ignorant” about which utility functions belong to which individuals. Lerner models this ignorance with a certain uniform probability distribution, and shows that, under certain further assumptions, income should be equally distributed. Much of the criticism of the relevance of Lerner’s result centers on the representation of ignorance involved. Imprecise probabilities provide a general framework for reasoning about various forms of uncertainty including, in particular, ignorance. To what extent can Lerner’s conclusion be maintained in this setting? (shrink)

One critique of John Rawls’ theory of justice is the inconceivability of the “original position,” as it is impossible to conceive of a self without all particular features. When this problem is considered, we try to imagine the position of contracting parties with no definite idea of the good, helping us understand the correspondence between the conditions of the original position and the contracting parties’ ideas of the good. This article focuses on the unacceptability of the conditions of the original (...) position, with its implicit veil of ignorance, as it is related to Islam. Islamic thought cannot accept Ralws’ conditions due to Islam’s universal command to follow the dictates of God and specific religious norms. Alternatively, the international original position presented in The Law of Peoples, with access to particular types of the good, is more appropriate for the Islamic context, exemplified through the idea of Kazanistan, with its Islamic form of government and membership in the Society of Peoples. (shrink)