After having shown that the current debate on the role of moral reasoning in adjudication is related to a set of institutional processes (the global spread of constitutionalism, the diffusion of written constitutions and declarations of human rights, the growing importance of rights claims in adjudication, and the processes of globalization and Europeanization), I distinguish two positions in that debate: ‘normative legal positivism’ and ‘neoconstitutionalism’. I argue that the choice between the two rival approaches must necessarily consider a variety of contingent legal, political, and social factors: we cannot accept or reject a normative theory of legal interpretation without first having analysed and assessed the institutional contex...