Principles of Macroeconomics / Unit 1 MAC 0006 short lesson, about 20 seconds
Specialization Requires Trade
Captions available
The idea
A specialist produces one thing and needs everything else, so specialization only works if there is a way to trade. Markets provide it.
In practice
A software developer sells code and buys food, clothing and shelter from others who specialize.
Where people slip
The gain from specializing is inseparable from the gain from trade, which is why unit seventeen treats them together.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
Builds on
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