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International Economics Unit Overview (IB Unit 4)


Reasons for Trade and The Terms of Trade
  • Differences in factor endowments. Variety and quality of goods. Gains from specialization. Political reasons.
  • Absolute and comparative advantage. Opportunity cost. The limitations of the theory.
  • Definition of the Terms of Trade. Consequences of a change in the terms of trade – especially deterioration for developing countries.
  • Measurement of the Terms of Trade. Short and long run causes of changes in a country’s Terms of Trade. Elasticity of demand for exports and imports.

Free Trade and Protectionism
  • Definition of free trade. Arguments for protectionism. Arguments against protectionism.
  • Types of protectionism.

Economic integration and the World Trade Organization
  • Globalization. Trading blocs – free trade areas; customs unions; common markets.
  • Trade creation and trade diversion. Obstacles to achieving integration.

Balance of Payments and Balance of Payment Problems
  • Measurement of the Balance of Payments.
  • Consequences of a deficit or surplus in current or capital accounts. Methods of correction.
  • The Marshall-Lerner condition and the J-curve.

Exchange Rates
  • Fixed, floating and managed exchange rates. Depreciation v devaluation and appreciation v revaluation. Factors affecting exchange rates.
  • Advantages and disadvantages of different exchange rate systems. Advantages and disadvantages of single currencies/monetary integration. Purchasing Power Parity (PPP).


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