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Comparative Advantage: An Idea Whose Time Has Passed

The Division of Labor Is the Engine That Drives Prosperity

• Michael Munger

The most important principle in economics is opportunity cost. Here’s proof: you can define opportunity cost without resorting to comparative advantage. But you can’t possibly define comparative advantage without invoking opportunity cost.
http://fee.org/freeman/comparative-advantage-an-idea-whose-time-has-passed/