- basic social problem-->Goods & services
- what the Goods & services will be produced?
- opportunity cost
- value of the best alternative given up
- how will the Goods & services be produced?
- who will receive the Goods & services produced
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- Making choive-->world of scarcity
- Econmoics models are the simplified version of reality used to analyze real-world economics situation
- three key ecomics ideas
- people are rational
- peolpe are responds to economics incentives
- optimal decision are made at the margin
- considering MB and MC --> marginal anaslysis
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