Human Rights and International Investment Arbitration

This chapter assesses the role of human rights in international investment arbitration. The treatment of human rights issues by investment tribunals has received increased attention in recent years, especially from the academic world. This is particularly so because tribunals have adopted varying approaches when confronted with human rights-based arguments. Some have responded in a negative way, declining to exercise jurisdiction when human rights were concerned. Others declined to discuss human rights arguments, noting that investment protection provisions were more favourable to investors than human rights law. Others applied human rights law where it composed part of the applicable law by virtue of the host State being a party to a human rights treaty. And some, when interpreting investment protection treaties, drew inspiration from approaches used by human rights courts, despite the decisive human rights treaty not being in force in the host state in the case at hand. The chapter then reflects upon the requirements for the application of human rights law in investment disputes.