Chapter 1. Estimation of Parameters of Constrained Optimization Models -- Chapter 2. Trade Liberalization and the Extensive Margin of Trade in a CGE Model with Heterogeneous Firms -- Chapter 3. Welfare Gains from Changing Partners in a Trade Bloc: The Case of MERCOSUR -- Chapter 4. The Economy-Wide Effects of Further Trade Reforms in Tunisia's Services Sectors -- Chapter 5. U.S. Imports of Low-Skilled Labor: Restrict or Liberalize? -- Chapter 6. Modeling Biofuels Policies in General Equilibrium: Insights, Pitfalls, and Opportunities -- Chapter 7. Bioeconomics and International Trade: The Case of the Great Salt Lake, Utah -- Chapter 8. Exploring Poverty Impacts of ASEAN Trade Liberalization for Cambodia, Lao PDR, Thailand and Vietnam -- Chapter 9. Regional Trade Reform under SAFTA and Income Distribution in South Asia -- Chapter 10. Regional Trade Opportunities for Asian Agriculture -- Chapter 11. Computational Analysis of the Menu of U.S.-Japan Trade Policies -- Chapter 12. China's Growing Participation in Preferential Trade Agreements: Implications for China and Its Trading Partners -- Chapter 13. Ex Ante Assessment of the Welfare Impacts of Trade Reforms with Numerical Models.