International Trade and Globalization Environment
The International Trade and Globalization Environment domain tests whether you can explain why nations trade, how the multilateral and regional system constrains government policy, and how macro forces change a firm's export calculus. Questions here are applied: you are given a scenario and asked which theory, institution, or barrier explains the outcome.
Trade theory the exam expects
- Absolute advantage (Smith): a country should produce what it makes more efficiently than its partner.
- Comparative advantage (Ricardo): specialise where opportunity cost is lowest, even if you are worse at everything; this is the formal basis for mutual gains from trade.
- Factor proportions (Heckscher–Ohlin): countries export goods intensive in the factor they hold abundantly (labour, capital, land).
- New trade theory: economies of scale and first-mover advantage explain intra-industry trade between similar economies.
- Porter's diamond: factor conditions, demand conditions, related and supporting industries, and firm strategy/rivalry explain national competitiveness.
The policy architecture
- WTO principles: most-favoured-nation, national treatment, tariff binding, transparency, and binding dispute settlement.
- Integration ladder: free trade area → customs union (common external tariff) → common market (factor mobility) → economic union.
- Barriers: tariffs (ad valorem, specific, compound), quotas, licensing, technical barriers to trade, sanitary and phytosanitary measures, local-content rules, subsidies, and anti-dumping actions.
Worked example
Country A needs 4 labour hours per unit of cloth and 8 per unit of wine; Country B needs 6 and 4. Opportunity costs: in A, one wine costs 2 cloth; in B, one wine costs 0.67 cloth. A therefore has the comparative advantage in cloth (0.5 wine per cloth versus B's 1.5), and B in wine. A gains by specialising in cloth and trading at any rate between 0.5 and 1.5 wine per cloth. The reasoning point examiners reward: comparative advantage is decided by the ratio, not by which country is absolutely more efficient.
Traps that cost marks
- Confusing absolute with comparative advantage.
- Treating an FTA as duty-free access without checking rules of origin.
- Forgetting that a customs union adds a common external tariff, so members lose independent tariff policy.
- Assuming a trade surplus is inherently good, or that a weak currency is unambiguously helpful.
- Ignoring non-tariff barriers, which frequently matter more than the headline tariff.