If you had to learn 3 things from Economics what would it be practice, remember, difficult, currency

leadcfa

Hi All,
I’m a bit lost with the economics bit….I find it quite difficult and would really like to focus on getting a a few of the easier questions right. I’ve been looking through the practice exams at the questions and can see some questions that come up which cover the same material each time.
If you had to remember 3 keys things from Economics that would help you answer 3 seperate questions. What would those 3 things be?
I’ll start us off.
1. Depreciation / Appreciation of currency and exchange rates.
2. Comparative or absolute advantage in trade.
3. The difference between, monopolistic, oligopoly, monopoly and perfect competition.

suyash1989

scarcity, opportunity cost, comparative advantage