A core question in the contemporary debate on distributive justice is how the fair distribution of income is affected by differences in talent and effort. Important theories of distributive justice, such as strict egalitarianism, liberal egalitarianism and libertarianism, all give different...

A large-scale economic experiment, conducted on a representative sample of the US population, shows that cooperation creates special moral obligations. Participants in the experiment, acting as impartial spectators, transferred significantly more money to an unlucky worker when two individuals...