Why Do Nations Obey International Law?
Review Essay Why Do Nations Obey International Law? The New Sovereignty: Compliance with InternationalRegulatory Agreements. By Abram Chayes" and Antonia Handler Chayes.*" Cambridge: Harvard University Press, 1995. Pp. xii, 404. $49.95. Fairness in International Law and Institutions. By Thomas M. Franck.- Oxford: Clarendon Press, 1995. Pp. 500. $55.00. Harold Hongju Koh Why do nations obey international law? This remains among the most perplexing questions in international relations. Nearly three decades ago, Louis Henkin asserted that "almost all nations observe almost all principles of international law and almost all of their obligations almost all of the time."' Although empirical work since then seems largely to have confirmed this hedged but optimistic description,2 scholars Felix Frankfurter Professor of Law, Emeritus, Harvard Law School ** President, Consensus Building Institute. Murray and Ida Becker Professor of Law; Director. Center for International Studtcs. New York University School of Law. t Gerard C. and Bernice Latrobe Smith Professor of International Law; Director. Orville H, Schell, Jr., Center for International Human Rights, Yale University. Thts Essay sketches arguments to be fleshed out in a forthcoming book, tentatively entitled WHY NATIONS OBEY: A THEORY OF COMPLIANCE WITH INTERNATIONAL LAW. Parts of this Review Essay derive from the 1997 \Vaynflete Lectures. Magdalen College, Oxford University, and a brief book review of the Chayeses volume in 91 Am. J. INT'L L. (forthcoming 1997). 1 am grateful to Glenn Edwards, Jessica Schafer. and Douglas Wolfe for splendid research assistance, and to Bruce Ackerman, Peter Balsam, Geoffrey Brennan. Paul David, Noah Feldman. Roger Hood, Andrew Hurrell, Mark Janis, Paul Kahn, Benedict Kingsbury, Tony Kronran.
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