International economic law is very likely to be one of the most significant areas of law throughout the twenty-first century. As is well-known, it is an inter-disciplinary area of law covering very broad and different fields since it deals with all economic aspects of relations among the subjects of international law. In today’s world, the relations among States, international organisations and individuals have dramatically intensified. It is a sine qua non requirement that the conflicts or cases deriving from the application of the principles of international economic law must be solved by the dispute settlement mechanisms of international law, which are crucial both for the protection of international peace and security on the one hand and for the implementation of international economic law on the other. The book focuses on the relationship between the rules of public international law and international economic law from the point of view of dispute settlement mechanisms. It consists of the following Chapters: International Economic Law; New Challenges and Issues in International Finance Law; Dispute Settlement in International Trade Law and Dispute Settlement in International Investment Law. Finally, the book draws some general conclusions and provides certain suggestions for future research and practice in the field.