A Guide to State Succession in International Investment Law provides a comprehensive analysis of State succession issues arising in the context of international investment law. The author examines whether a successor State is bound by the investment treaties and State contracts which the predecessor State had signed with other States and foreign investors before the date of succession. Actors who are called upon to apply rules of State succession in investment arbitration cases will find this book a valuable source of practical guidance with strong theoretical foundations.

Marcelo Kohen and Patrick Dumberry explore in an article-by-article commentary the Resolution adopted in 2015 by the Institute of International Law, on state succession in matters of state responsibility. They analyse the content and scope of application of each provision based on a comprehensive survey of existing state practice and judicial decisions (both domestic and international), as well as taking into account the works of scholars and that of the ILC Special Rapporteur in his proposed Draft Articles on the same topic. This book explains the rationale and the reasons behind why the Institute adopted specific solutions to address particular problems of succession to responsibility for each provision, including the need to achieve a fair outcome given the specific circumstances and relevant factors for each case.

Patrick Dumberry provides a comprehensive analysis of the rules of customary international law in the field of international investment law.

General international law is part and parcel of investor-state arbitration. This is the case not only regarding treaty law and state responsibility, but also with respect to matters such as state succession, the international minimum standard, and state immunity, all of which feature regularly in investor-state arbitration. Yet, although general international law issues arise in almost every investment case and often require extensive research, no systematic exploration of the relationship between the two exists. This Commentary is the first to fill this gap, providing a comprehensive treatment of the role of general international law in international investment law. It engages in detail with central matters of general international law, including in the practice of investment arbitration tribunals, moving beyond existing works which focus solely on procedural and institutional provisions. The Commentary's forty-six chapters do not focus on a single source or subject. Instead, each concentrates on a specific, relevant article from a particular source of public law - such as the Vienna Convention on the Law of Treaties (1969) or the International Law Commission's Articles on the Responsibility of States for Internationally Wrongful Acts (2001), among others. The entries combine detailed analysis with an examination of procedural and substantive aspects - such as nationality and unjust enrichment - and respond to the following questions: how have investment tribunals interpreted and applied the specific rule of general international law? To what extent and why does such interpretation and application align with or deviate from the practice by other international courts or tribunals? How could and should investment tribunals interpret and apply rules that have yet to feature in investment arbitration? This unique format means this commentary will serve as a central guide for all relevant case law and scholarship on international investment law.

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.

Investments in Conflict Zones' addresses the topical and underexplored role of international investment law in armed conflicts, disputed territories, and 'frozen' conflicts. The edited collection explores how these different conflict situations impact the application and interpretation of international investment law and how the protection of investors can be reconciled with the politically charged circumstances and state interests involved. Written by a selected group of experts from different fields of international law, the volume moves beyond the confines of investment law, offering novel insights on its intersection with the law of armed conflict, human rights law, the law of the sea, general international law and national laws, including those adopted by de facto regimes which lack recognition as states.