In The Interpretation of International Investment Law: Equality, Discrimination and Minimum Standards of Treatment in Historical Context, author Todd Weiler demonstrates how historical analysis should be adopted in the interpretation of international investment law obligations. Weiler subjects some of the most commonly held beliefs about the nature and development of international investment law to a critical re-appraisal, based upon meticulously assembled historical record. In the process, the book provides readers with a fresh perspective on some of the oldest obligations in international law.

A comprehensive source of information on four key issues: the definition of investor and investment; the interpretation of umbrella clauses in investment agreements; coverage of environmental, labour and anti-corruption issues; and the interaction between investment and services chapters in RTAs.

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.

Transnational investment involves a variety of actors (States, public and private legal entities, and natural persons) whose relationships are governed by rules and legal instruments belonging to different legal systems. This book provides a systematic study of the sources of rights and obligations in the field of transnational investment, and their coordination and interaction. It focuses primarily on the network of over 3,000 Bilateral Investment Treaties, international investment contracts, customary international law, the main multilateral treaties, national legislation, international case law and general principles of law. The book, firmly based on State practice, arbitral awards and national decisions, is indispensable to fully appraise the nature and content of the claims of private investors as well as to identify the law applicable in investment arbitration.

This up-to-date and revised third edition offers a clear and comprehensive overview aimed at upper-level undergraduate and postgraduate courses on international investment law. Key features and benefits include: • concise descriptions of legal principles followed by classic and contemporary cases • extracts from and analysis of key recent decisions, revised investment treaty texts and new court system proposals • detailed discussion notes and all new ‘Questions to an Expert’ to enable classroom discussion and facilitate critical reflection.

This book outlines the principles behind the international law of foreign investment. The main focus is on the law governed by bilateral and multilateral investment treaties. It traces the purpose, context, and evolution of the clauses and provisions characteristic of contemporary investment treaties, and analyses the case law, interpreting the issues raised by standard clauses. Particular consideration is given to broad treaty-rules whose understanding in practice has mainly been shaped by their interpretation and application by international tribunals. In addition, the book introduces the dispute settlement mechanisms for enforcing investment law, outlining the operation of Investor-State arbitration. Combining a systematic analytical study of the texts and principles underlying investment law with a jurisprudential analysis of the case law arising in international tribunals, this book offers an ideal introduction to the principles of international investment law and arbitration, for students, scholars, and practitioners alike.

International investment law is in transition. Whereas the prevailing mindset has always been the protection of the economic interests of individual investors, new developments in international investment law have brought about a paradigm shift. There is now more than ever before an interest in a more inclusive, transparent, and public regime. Shifting Paradigms in International Investment Law addresses these changes against the background of the UNCTAD framework to reform investment treaties. The book analyses how the investment treaty regime has changed and how it ought to be changing to reconcile private property interests and the state's duty to regulate in the public interest. In doing so, the volume tracks attempts in international investment law to recalibrate itself towards a more balanced, less isolated, and increasingly diversified regime. The individual chapters of this edited volume address the contents of investment agreements, the system of dispute settlement, the interrelation of investment agreements with other areas of public international law, constitutional questions, and new regional perspectives from Europe, South Africa, the Pacific Rim Region, and Latin America. Together they provide an invaluable resource for scholars, practitioners, and policymakers. The individual chapters of this edited volume address the contents of investment agreements, the system of dispute settlement, the interrelation of investment agreements with other areas of public international law, constitutional questions, and new regional perspectives from Europe, South Africa, the Pacific Rim Region, and Latin America. Together they provide an invaluable resource for scholars, practitioners, and policymakers.

'...This book [...] goes beyond stating what the law is and focuses on controversies occurring within this area of the law... an excellent introduction to this complex area of international law for newcomers to the subject' Kate Miles, Australian International Law Journal The updated edition of this acclaimed book offers a critical overview of the law of foreign investment, incorporating a thorough analysis of the principles and standards of treatment available to foreign investors in international law. It is authoritative and multi-layered, offering an analysis of the key issues and an insightful assessment of recent trends in the case law, from both developed and developing country perspectives. A major feature of the book is that it deals with the tension between the law of foreign investment and other competing principles of international law. In doing so, it proposes ways of achieving a balance between these principles and the need to protect the legitimate rights and expectations of foreign investors on the one hand, and the need not to restrict unduly the right of host governments to implement their public policy on the other, including the protection of the environment and human rights, and the promotion of social and economic justice within the host country. Many of the pioneering ideas that were advanced in the first edition of this book in 2008 have been taken up by governments and international organisations in their attempts to reform the investor-State dispute settlement mechanism and strike a balance between different competing principles in developing international investment law. Accordingly, this fourth edition captures the essence of the ongoing multiple reform processes -either planned or envisaged – currently underway.

At first glance, one may think of international investment law as a response to custom (or lack thereof), instead of a field of its application. However, in fact, the opposite is the case. The interpretation and application of customary rules and principles are the bread and butter of international investment law and arbitration. With a diverse range of expert contributors, this collection traces how customary international law is practised in international investment law. It considers how custom should be interpreted and how its rules and principles should be understood and applied by investor-state arbitral tribunals. Raising and addressing vital questions surrounding custom and international law, this collection is a necessary contribution to the scholarship of the theory and history of customary international law and international investment law. This title is also available as Open Access on Cambridge Core.

This book offers a systematic study of the interpretation of investment-related treaties – primarily bilateral investment treaties, the Energy Charter Treaty, Chapter XI NAFTA as well as relevant parts of Free Trade Agreements. The importance of interpretation in international law cannot be overstated and, indeed, most treaty claims adjudicated before investment arbitral tribunals have raised and continue to raise crucial and often complex issues of interpretation. The interpretation of investment treaties is governed by the Vienna Convention on the Law of Treaties (VCLT). The disputes relating to these treaties, however, are rather peculiar as they place multinational companies (or natural person) in opposition to sovereign governments. Fundamental questions dealt with in the study include: Are investment treaties a special category of treaty for the purpose of interpretation? How have the rules on interpretation contained in the VCLT been applied in investment disputes? What are the main problems encountered in investment-related disputes? To what extent are the VCLT rules suited to the interpretation of investment treaties? Have tribunals developed new techniques concerning treaty interpretation? Are these techniques consistent with the VCLT? How can problems relating to interpretation be solved or minimised? How creative have arbitral tribunals been in interpreting investment treaties? Are States capable of keeping effective control over interpretation?