On Who matters: extending the scope of luck egalitarianism to groups

What is the scope of principles of egalitarian justice? This is the question that Kasper Lippert-Rasmussen addresses in Chapter 6 of his Luck Egalitarianism, where he comprehensively considers the different dimensions along which the issue of the scope can be articulated (e.g. with respect to time, to the boundaries of states, etc.). For all the dimensions taken into account he defends a broad understanding of the scope of equality, except for one. He thinks that the principle of luck egalitarianism can only apply to individuals and not to groups. In this paper, we show that Lippert-Rasmussen's reasons for caring only about inequality between individuals are unsatisfactory, and we provide an argument that justifies extending the application of the luck egalitarian principle also to groups.