Unit 4.1-4.6: International trade model answers

This page is the landing page for the model answers in unit 4.1-4.6, international trade 

Question 1: Unit 4.1-4.6 exchange rates

Question 2: Unit 4.1-4.6 trade barriers

Question 3: Unit 4.1-4.6 customs unions

Question 4: Unit 4.1-4.6 current account deficit