4.3.1.5a - Trading bloc expansion

Explain expansion of trading blocs, including the EU single market, ASEAN and NAFTA.

Use a - trading bloc expansion to connect the rule to the data and decision in the question.

This matters because a - trading bloc expansion determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply a - trading bloc expansion to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: a - Trading bloc expansion is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.