Abstract
During this age of globalisation, the law is characterised by an ever diminishing hierarchical framework, with an increasing role played by non-state actors. Such features are also pertinent for the international enforceability of human rights. With respect to human rights, TNCs seem to be given broadening obligations, which approach the borderline between ethics and law. The impact of soft law in this context is also relevant. This paper aims to assess whether, and to what extent, this trend could be a proper path to enforce the legal accountability of transnational corporations for human rights. It will be argued that the interplay between law and ethics should be assessed differently depending on which kind of correlative duty is at stake. With regard to negative duties, soft law tools concerning TNCs’ conduct may weaken the impact of hard law. By contrast, when positive duties are concerned, insofar as the horizontal effect of rights cannot be assumed, soft law turns out to be much more useful