The analysis of demand in international trade; the analysis of supply in international trade; general equilibrium and the gains from trading; the determination of the terms of trade; explanations of the pattern and composition of international trade; issues emanating from the HOS model - the Factor Price Equalization Theorem, the Stopler-Samuelson Theorem, the Rybezynski Theorem; impediments on trade; optimum tariffs and retaliation; tariffs - some further issues; international economic integration; economic growth and international trade; market imperfections and factor mobility; economies of scale; voluntary export restraints; intra-industry trade; protection and employment.