Unveiling the complex dynamic between State sovereignty and necessity doctrine as historically practiced in international political relations, this book proposes analytical criteria to assess the lawfulness and legitimacy of interpretations of necessity and national emergency clauses in specialized treaty regimes.

Like many concepts in international law, the definition of “necessity” varies widely depending on context. The concepts of necessity in different fields of international law can maintain their unique definitions while learning from each other, and thereby achieve coherence. This book presents the evolution of the concept of necessity, and discusses its definitions in nine different fields of international law. Centering customary international law and the law of the World Trade Organization in his analysis, Dr. Senai W. Andemariam examines the potential for interactions and coherence between concepts of necessity in various fields of international law.

Caroline Henckels examines how investment tribunals should balance competing state and investor interests in determining state liability in regulatory disputes.

Explores the normative foundation of international humanitarian law by developing and defending a new theory of military necessity.

Volume 14 of the ICSID Reports includes cases up to early 2007.

Investment Treaty Arbitration is an excellent teaching tool for lecturers and readers of international investment arbitration. This casebook includes over 40 exercises based on real-life disputes, helping readers evaluate and analyse all aspects of the topic.