A theoretical analysis of the structure of expropriation in investment law, investigating the foundations for contemporary scholarship and practice.

Expropriation is a hotly debated issue in international investment law. This is the first study to provide a detailed analysis of its norm-theoretical dimension, setting out the theoretical foundations underlying its understanding in contemporary legal scholarship and practice. Jörg Kammerhofer combines a doctrinal discussion with a theoretical analysis of the structure of the law in this area, undertaking a novel approach that critically re-evaluates existing case-law and writings. His approach critiques the arguments for a single expropriation norm based on custom, interpretation and arbitral precedents within international investment law, drawing also on generalist international legal thought, to show that both cosmopolitan and sovereigntist arguments are largely political, not legal. This innovative work will help scholars to understand the application of theory to investment law and help specialists in the field to improve their arguments.

This important book examines the development of soft law instruments in international investment law and the feasibility of a 'codification' of the present state of this field of international economic law. It draws together the views of international experts on the use of soft law in international law generally and in discrete fields such as WTO, commercial, and environmental law. The book assesses whether investment law has sufficiently coalesced over the last 50 years to be 'codified' and focuses particularly on topical issues such as most-favoured-nation treatment and expropriation. This timely book will appeal to academics interested in the development of international law and legal theory, to those working in investment law, Government investment treaty negotiators and arbitration practitioners.

Bringing together conceptual theories of international investment law with the practical application of the law in treaty arbitration, this book investigates the key controversies in the field. It provides a detailed examination of how a different theoretical approach would have led to a different outcome in a number of important arbitral awards.

International investment law is one of the fastest growing areas of international law. It has led to the signing of thousands of agreements, mostly in the form of investment contracts and bilateral investment treaties. Also, in the last two decades, there has been an exponential growth in the number of disputes being resolved by investment arbitration tribunals. Yet the legal principles at the basis of international investment law and arbitration remain in a state of flux. Perhaps the best illustration of this phenomenon is the wide disagreement among investment tribunals on some of the core concepts underpinning the regime, such as investment, property, regulatory powers, scope of jurisdiction, applicable law, or the interactions with other areas of international law. The purpose of this book is to revisit these conceptual foundations in order to shed light on the practice of international investment law. It is an attempt to bridge the growing gap between the theory and the practice of this thriving area of international law. The first part of the book focuses on the 'infrastructure' of the investment regime or, more specifically, on the structural arrangements that have been developed to manage foreign investment transactions and the potential disputes arising from them. The second part of the book identifies the common conceptual bases of an array of seemingly unconnected practical problems in order to clarify the main stakes and offer balanced solutions. The third part addresses the main sources of 'regime stress' as well as the main legal mechanisms available to manage such challenges to the operation of the regime. Overall, the book offers a thorough investigation of the conflicting theoretical positions underlying international investment law, testing their worth by reference to concrete issues that have arisen in the jurisprudence. It demonstrates that many of the most important practical questions arising in practice can be addressed by a carefully dosed resort to theory.

International investment law is one of fastest-growing areas of international law, but it is plagued by the vagueness of many investors' rights and unpredictable investment tribunal decisions. This books analyses international investment law through the lens of comparative public law to clarify investment treaty obligations and arbitral procedure.

An examination of the origins of international investment law and their continued resonance in the twenty-first century.