In his Tanner Lecture of 1979 called ‘Equality of What?’ Amartya Sen asked what metric egalitarians should use to establish the extent to which their ideal is realized in a given society. What aspect of a person’s condition should count in a fundamental way for egalitarians, and not merely as cause of or evidence of or proxy for what they regard as fundamental?

Inequality is intrinsically bad when and because it is unfair. It follows that the ideal of equality is not necessarily realised by a distribution of resources which is envy-free prior to the resolution of risks against which people have an equal opportunity to insure. Even if the upshot of such an ex ante envyfree distribution is just, it is not necessarily fair.

I argue that Scanlon's Value of Choice View does not offer a plausible account of substantive responsibility. I offer a new account, which I call the Potential Value of Opportunities View. On this view, when a person is in a position to freely and capably make an informed choice, we assess her situation not by the outcome she achieves but by the potential value of her opportunities. This value depends on the value of the various things that she can achieve (...) through her choices, as well as on how disposed she is to choose her better options and avoid her worse options. This view explains the priority we give to preventing harm that a person cannot avoid by choosing appropriately over harm that a person can so avoid by the fact that the second person has a valuable opportunity that the first does not have. It explains the importance of protecting people against choosing badly by the value of being placed in circumstances in which one is disposed to choose well, and the disvalue of being exposed to the danger of coming to harm by choosing badly. (shrink)