Although domestic law plays an important role in investment treaty arbitration, this issue is little discussed or analysed. When should investment treaty tribunals engage with domestic law? How should investment treaty tribunals resolve matters of domestic law? These questions have significant ramifications for both the legitimacy of the investment treaty system and the arbitral mandate of the tribunal members. Drawing on case law, international law principles, and comparative analysis, this book addresses these important issues.
Part I of the book examines three areas of investment...