Abstract: | This article discusses the concepts of proportionality, necessity and balancing in the World Trade Organization (WTO) legal framework. These concepts are increasingly important in the context of services and establishment regulated by the General Agreement on Trade in Services. The role and meaning of proportionality, necessity and balancing are not clear. The emerging WTO case law is analysed in this article, which adopts a comparative approach, drawing upon proportionality and balancing tests in different national and international legal orders. It discusses how these tests could influence the interpretation and application of WTO law. A main argument is that trade-offs among competing norms and values are unavoidable in WTO dispute settlement, and that the proportionality analysis could contribute to making this process more transparent, rational and predictable. |