This book critically examines the reception and application of the 2011 Articles on the Responsibility of International Organizations (ARIO), assessing their effectiveness and limitations. Adopting a panoptic approach, it explores the theory underlying the concept of responsibility for internationally wrongful acts in ARIO through both doctrinal analysis and practical case studies.

The editors have brought together a diverse group of legal experts to analyze various fields in the law of responsibility for international organizations (IOs), including questions of attribution, shared responsibility, the implementation of responsibility, and the progressive development of ARIO rules. The book argues that, despite its rare application, the ARIO are a useful resource for ascertaining the responsibility of IOs in the form of judicial, non-judicial, internal or external control mechanisms. Ultimately, the book demonstrates that the ARIO constitute an authoritative legal source, capable of guiding IOs in reforming their internal law.

Providing a variety of empirically-grounded and theoretical perspectives, this book is an excellent resource for researchers, scholars and students of law, arbitration and dispute resolution, public international law and international relations. Readers will also benefit from the applied nature of the text and the book's forward-thinking approach.