Abstract
Contemporary global justice theories could be introduced and reduced to three kinds: the deontological approach, the theory of obligation, and the theory of self-interest. Our analysis finds that only the theory of obligation and the theory of self-interest provide strong enough justifications for developed states and their people to assist underdeveloped states and their people. However, the theory of obligation requires some special preconditions, and the theory of self-interest cannot proceed in the name of justice, so we conclude that contemporary global justice theories are not tenable.