This book is the fifth volume of analyses of World Trade Organization decisions interpreting and applying an international agreement that is central to world commerce and to our hopes for continued prosperity in the developed world and for economic growth in developing nations. The American Law Institute, a private organization with 4,100 members, most of them American lawyers, has sought for all of its 85 years to contribute to American and world law by analyzing current law and recommending principles that will make law more coherent and more consistent with social needs. The ALI will continue to analyze WTO decisions in books like this one. We have also begun to draft general principles of trade law based on the decisions discussed in this and the previous volumes.

The studies published here were written by economist/lawyer partnerships. They have been vetted by experts and revised to reflect constructive criticism. We therefore thank the authors, our Chief Reporters Henrik Horn of Stockholm University and Petros Mavroidis of the University of Neuchatel and of Columbia University School of Law, and the scholars and WTO officials who discussed earlier drafts at our meeting in Geneva in June 2008. We also thank the Jan Wallander and Tom Hedelius Foundation and the Milton and Miriam Handler Foundation for the financial support that has been essential to this important work.