This second edition provides an updated exploration of the four main pillars of international economic law: international trade, international investment, monetary relations, and development. David Collins explores recent trends in the field and presents a thorough discussion of the economic rationale and social impact of universal legal concepts. All chapters have been meticulously revised to address the way international law has adapted to changes in global economy following the COVID-19 pandemic, the increased importance of digital trade and the rise of industrial policy. Collins provides insight into new regional trade agreements, including the megaregional Comprehensive Progressive Trans Pacific Partnership and the Regional Comprehensive Economic Partnership. He also examines the rising relevance of the Asian Infrastructure Investment Bank and delves into the Multi-Party Interim Appeal Arbitration Arrangement intended to resolve the impasse in WTO dispute settlement. Key Features: Diagrams to aid learning by presenting essential concepts in a clear, visual format Updated reading lists, directing students towards useful resources for more in-depth study Provocative and challenging discussion questions to further critical thinking both in and outside of the classroom This new edition of Foundations of International Economic Law is an essential guide for students of international economic and investment law, as well as arbitration and dispute resolution.