This article advocates a clearly articulated normative framework for the analysis of international trade law. To build the argument, the author discusses the concept of distributive and corrective justice, as well as moral obligation in international trade law. He shows how free trade could be justified under utilitarian, libertarian and egalitarian approaches to liberal theory. Such an approach, the author concludes, would help structure a just international trade law that ensures that international trade benefits the least advantageous states, and allows for an effective protection of human rights.