In this thought-provoking book, Michelle Q. Zang critically examines the practices and outcomes of international economic adjudication through an exploration of a selected group of specialized judicial actors. She draws on an in-depth review of decisions delivered by bilateral, regional and multilateral judiciaries in order to respond to questions surrounding the proliferation and fragmentation of international adjudication, including the concerns and challenges this raises. By disentangling and analysing the relationships between the various economic regimes involved, Zang reveals their substantial influence on the manner of engagement between specific adjudicators embedded in these regimes. The book also provides critical discussion about the development of international economic judiciaries, and explores the role of judicial bodies as regime coordinators within specialized and regional regimes under international law. It demonstrates that despite criticisms of plurality as the dominant phenomenon in international economic adjudication, it is not the sole root of the issues examined. Scholars and students of international law, in particular those interested in international adjudication and international economic law, will find this book to be crucial reading. It will also prove useful for practitioners specializing in international economic dispute settlement.