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IB Economics · Unit 4

The global economy: notes and practice questions

10 subtopics 53 practice questions

Trade and its gains, the four kinds of protection, the arguments each way, economic integration, exchange rates, the balance of payments, then four subtopics on development: sustainability, measurement, barriers and strategies. The largest unit at SL and the one where SL and HL are closest. The hard parts are the protection diagrams, which carry six labelled areas each and are the most information-dense diagrams in the course; the balance of payments, which at SL is pure definition and calculation and at HL becomes an entire evaluative subtopic including Marshall-Lerner and the J-curve; and the development half, which has no diagrams of its own and expects students to borrow from the rest of the course. Examined heavily on Paper 1, because the development subtopics have three AO3 rows between them and support essays without needing new theory.

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