A-Level Economics revision: International Trade and Development. Learning objectives, key points, worked examples and practice questions across AQA, Edexcel, OCR, WJEC and CCEA.
π Key Points
Key Fact: Absolute: produce more with same resources; Comparative: lower opportunity cost -> specialise -> trade
Evaluate development strategies: import substitution vs export-led, aid, FDI, debt
Use development indicators: HDI, MDGs/SDGs, inequality (Gini, Lorenz)
π‘ Worked Example
Exam-Style Question
Question: Country A: 10 labour hours for 1 cloth or 5 wine. Country B: 6 cloth or 4 wine. Who has comparative advantage in what?
Model Answer:
A: OC 1 cloth = 2 wine (10/5), 1 wine = 0.5 cloth. B: OC 1 cloth = 0.67 wine (6/4), 1 wine = 1.5 cloth. B has CA in cloth (lower OC), A has CA in wine. A exports wine, B exports cloth. Both gain
Worked example (10 min): Model the example question: Country A: 10 labour hours for 1 cloth or 5 wine. Country B: 6 cloth or 4 wine. Who has comparative advantage in what?. Solution: A: OC 1 cloth = 2 wine (10/5), 1 wine = 0.5 cloth. B: OC 1 cloth = 0.67 wine (6/4), 1 wine = 1.5 cloth. B has CA in cloth (lower OC), A has CA in wine. A exports wine, B exports cloth. Both gain
Practice (10 min): Students attempt the practice questions independently; circulate and support.
Plenary (5 min): Review answers and address misconceptions.
π Homework
Calculate opportunity costs for CA
Draw tariff diagram showing DWL
Explain J-curve effect
Evaluate export-led vs import substitution
Interpret Lorenz curve and Gini
π§Ύ Assessment
Check practice answers against the model answer; use the built-in practice questions as formative assessment.