Preface; Contents; Part 1 Introduction; CHAPTER 1 DIVISION OF LABOR AND CORNER SOLUTIONS IN POSITIVE TRADE THEORY; 1. Marginalism; 2. Division of Labor vs. Theory of Distribution; 3. Inframarginal Economics; 4. An Inframarginal Approach to Trade Theory; References; Part 2 Origins of Inframarginal Applications to Trade Theory; CHAPTER 2 ECONOMICS AND BIOLOGY: SPECIALIZATION AND SPECIATION*; Summary; References; CHAPTER 3 SUBSTITUTION AND DIVISION OF LABOUR*; 1. Introduction; 2. Indirect Production Functions; 3. Selection and Income Distribution; 4. Conclusion; Acknowledgments; References. CHAPTER 4 TRADE AND INSURANCE WITH MORAL HAZARD*1. Introduction; 2. Individual Risk, Exclusive Insurance; 3. Individual Risk, Unconstrained Insurance; 4. Aggregate Risk, Exclusive Insurance; 5. Concluding comments; Appendix A; Appendix B; Appendix C; References; CHAPTER 5 TRADE AND INSURANCE WITH IMPERFECTLY OBSERVED OUTCOMES*; 1. Introduction; 2. The Model; 3. Unobserved Outcomes; 4. Costly Observation; 5. Concluding Remarks; References; Part 3 Exogenous Comparative Advantage: Corner Solutions in the Heckscher-Ohlin and Ricardian Models of Trade. CHAPTER 6 AN INFRAMARGINAL ANALYSIS OF THE RICARDIAN MODEL*1. Introduction; 2. A Simple 2x2 Ricardian Model and Inframarginal Analysis; 3. A 2x2 Ricardian Model with Tariff; 4. A 3x2 Ricardian Model; 5. Conclusion; References; CHAPTER 7 A RICARDIAN MODEL WITH ENDOGENOUS COMPARATIVE ADVANTAGE AND ENDOGENOUS TRADE POLICY REGIMES*; 1. Introduction; 2. A General Equilibrium Ricardian Model; 3. Endogenous Trade Policy Regime; 4. Conclusion; References; CHAPTER 8 A GENERAL-EQUILIBRIUM RE-APPRAISAL OF THE STOLPER-SAMUELSON THEOREM*; 1. Introduction. 2. The General-Equilibrium HO Model with Differences in Technology3. A Re-Appraisal of the Stolper-Samuelson Theorem; 4. Conclusion; References; Part 4 Division of Labor in Models of Trade with Economies of Scale; CHAPTER 9 A RICARDO MODEL WITH ECONOMIES OF SCALE*; Introduction; 1. Some Basic Properties and the Basic Graph; 2. Existence of Solutions; 3. Boundaries of the Region of Equilibria; 4. Filling in; 5. Non-specialized Equilibria; 6. The General Shape of the Region and a Special Case; 7. General Properties of the Model; 8. Summary; Appendix 1; Appendix 2; References. CHAPTER 10 PATTERN OF TRADE AND ECONOMIC DEVELOPMENT IN A MODEL OF MONOPOLISTIC COMPETITION*1. Introduction; 2. The Model and Local Equilibria and Marginal Comparative Statics in Various Trade Structures; 3. General Equilibrium and Inframarginal Comparative Statics; 4. Comparison with the Models with CRS; 5. Concluding Remarks; References; CHAPTER 11 MARKET LED INDUSTRIALIZATION AND GLOBALIZATION*; 1. Introduction; 2. An Extended Murphy-Shleifer-Vishny Model of Industrialization; 3. Extension and Applications; 4. Concluding Remarks; References.