Lesson 6 of 6 · 13 min
Trade creation, trade diversion and the costs of integration
A trading bloc helps its members when it replaces costly home production with cheaper partner imports (trade creation), but it can hurt when it swaps a cheaper outside supplier for a costlier partner (trade diversion), and deeper integration also limits independent policy.
In short
- Trade creation: higher-cost domestic production is replaced by lower-cost imports from a member.
- Trade diversion: lower-cost imports from a non-member are replaced by higher-cost imports from a member because only the outsider still faces the tariff.
- If trade creation exceeds trade diversion, the bloc's net welfare effect is positive.
- Extra benefits of blocs: all the usual gains from trade, plus less potential for conflict, more bargaining power, growth spillovers and convergence of living standards.
- Costs: adjustment and possibly long-term losses for displaced workers, sovereignty concerns, cultural and historical frictions, and loss of independent economic policy, sharpest in a monetary union.
- For investors: larger single markets and scale economies, but cultural differences persist and problems in one member can spread to others.
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