ABSTRACT
The previous chapter sets out the significant contributions that general rules of public international law continue to make in building a body of international law governing foreign investment. Is the reverse also true? Is international investment law capable of contributing to the development of public international law in the same way that international trade law, pursuant to the WTO Agreements 1 and a host of RTAs, 2 has served to enrich international law? 3 This chapter asserts that international investment law is indeed making a significant contribution both to international dispute settlement procedures (Part I) and to the substance of public international law (Part II). In doing so, this chapter argues that, far from contributing to the “fragmentation” of international law, international investment law should be seen as a source of enrichment for public international law.
