[Rachel Brewster is Professor of Law at Duke Law] One of the many virtues of Eric Posner and Alan Sykes’ new
book, “Economic Foundations of International Law,” is that it provides the reader with a theoretically coherent and consistent overview of important international treaty regimes, substantive international rules, and state enforcement practices. The
book is a lucid introduction to international law for students and also contains sophisticated analysis of the dynamics of international legal systems for academics and international lawyers. A major theme of the
book is that state compliance...