Machine generated contents note: Foreword Petros C. Mavroidis; Introduction; Law and economics in a nutshell; Part I. Optimal Regulation and International Trade Law - Theory: 1. Introduction to Part I; 2. Optimal regulation; 3. Deviations from optimal regulation; 4. Deviations from optimal regulation and the role of international trade agreements; 5. Conclusion to Part I; Part II. Optimal Regulation and International Trade Law - Application: 6. Introduction to Part II; 7. Domestic regulation and the GATT; 8. Domestic regulation and the TBT Agreement; 9. Domestic regulation and the SPS; 10. Conclusion to Part II.