Your teacher may ask you to pull this up when you do your DBA:
This lesson reviews comparative advantage which you learned in module 1. Here is a video to help you review how to calculate comparative advantage with both the input method and output method
This lesson is about the balance of payments system. Make sure you understand what types of transactions count in the current account what types count in the financial account. The video below will help you review.
These lessons go together and you should read both before you take the 4.03 quiz. It will make more sense that way. The videos below will make a concept that can be confusing quite simple. Watch all three before you try the 4.04 assignment.
The video below shows you how a tariff (tax on an import) works
Below is a great review of the whole module. He calls it unit 5 but it is FLVS Macro module 4.