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Customary international law, although long recognized as a primary source of international law, remains replete with enigmas, both conceptual and practical. These include how to determine the existence of opinio juris, the function of the state practice requirement, the definition of jus cogens customary norms, and the relationship between customary international law and ethics. In part because of these enigmas, the subject has generated a wide-ranging literature. However, no recent book-length work has attempted to articulate a comprehensive theory of customary international law that can effectively resolve these questions. This book sets out to accomplish this goal. Its approach is unique in a number of ways. For example, it is multidisciplinary and draws insights from fields such as legal theory, philosophy, political science, and game theory. In addition, it is anchored in a sophisticated ethical framework and explores at length the interconnections between customary international law and ethics.Read more
- A significant and recent book-length work that develops a comprehensive theory of customary international law
- The theory developed in the book challenges traditional conceptions of customary international law
- Draws insights from disciplines other than international law and situating customary international law within a sophisticated ethical framework
Reviews & endorsements
"This volume occupies a unique niche in public international law theory: a superb treatment of sources of international obligation, as well as foundational ethics. Brian Lepard is as a leading moral philosopher of the field."
--David J. Bederman, K.H. Gyr Professor of Private International Law, Emory University School of LawSee more reviews
"[T]his book presents an engaging, original and appealingly coherent contribution to the theory of CIL... Customary International Law is a valuable piece of scholarship worth reading for anyone interested in the conceptual problems raised by CIL."
--Review in the Journal of International Law and Politics
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- Date Published: January 2010
- format: Hardback
- isbn: 9780521191364
- length: 440 pages
- dimensions: 229 x 152 x 29 mm
- weight: 0.81kg
- contains: 14 b/w illus.
- availability: Available
Table of Contents
1. The enigmas of customary international law
2. Foundations of a new theory of customary international law
3. Resolving the conceptual enigmas of customary international law
4. Resolving the practical enigmas of customary international law
5. Some applications of the theory
6. The future of customary international law.
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