ECON 1BB3 Lecture Notes - Lecture 5: Opportunity Cost, Comparative Advantage

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ECON 1BB3 Full Course Notes
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ECON 1BB3 Full Course Notes
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Example 1: there are 2 interior decorators who can paint and wallpaper. 5 rooms, stewart can paint 10 rooms or wallpaper 8 rooms. Opportunity cost: whatever must be given up to obtain some item (eg. going to university instead of working) Next best alternative use of those dollars. M"s opportunity cost for 20 painted rooms is 5 wallpapered rooms. M"s opportunity cost of 1 painted room is wallpapered room. Absolute advantage: the ability to produce a good with a smaller quantity of inputs. Comparative advantage: the ability to produce a good with a smaller opportunity cost. Can"t have comparative advantage in both goods. If martha was exactly twice as good as stewart, then nobody has a comparative advantage: same opportunity cost, neither is better off be trade. Comparative advantage reflects the relative opportunity cost. Example 2: martha can paint 20 rooms or wallpaper 5 rooms, stewart can paint 10 rooms or wallpaper 4 rooms.

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