Why Levelling Down could be Worse for Prioritarianism than for Egalitarianism

Derek Parfit has argued that, in contrast to prioritarianism, egalitarianism is exposed to the levelling down objection, i.e., the objection that it is absurd that a change which consists merely in the betteroff losing some of their well-being should be in one way for the better. In reply, this paper contends that (1) there is a plausible form of egalitarianism which is equivalent to another form of prioritarianism than the Parfitian one, a relational rather than an absolute form of prioritarianism, and that (2), although this relational or egalitarian form of prioritarianism is hit by the levelling down objection, the Parfitian form is also hit by it, or worse objections, if it is fully worked out.

Input and output in distributive theory

Distributive theories evaluate distributions of goods based on candidate recipients’ characteristics, e.g. how well off candidates are, how deserving they are, and whether they fare below sufficiency. But such characteristics vary across possible worlds, so distributive theories may differ in terms of the world which for them settles candidates’ characteristics. This paper examines how distributive theories differ in terms of whether candidate recipients’ relevant characteristics are grounded in the possible world that would take place if the distributor does not intervene (call it the “input” world) or if they are grounded in each possible world that the distributor can bring about through different decisions (call each an “output” world). We illustrate the importance of this distinction in relation to one distributive theory, prioritarianism. As we show, both input and output versions of prioritarianism are plausible interpretations of the literature, and there are good reasons to take input prioritarianism seriously. Ultimately, however, we argue that input prioritarianism should be rejected.