Look, yes, comparative advantage is one of those things that\’s really hard to grasp. It is counter intuitive.
But, but, et tu Dave?
This (lovely and interesting) map isn\’t showing comparative advantage. It\’s showing absolute advantage.
A country which is \”best\” at something has an absolute advantage. Comparative advantage is about that we do (whether country or individual) the thing which we are least bad at given our range of possibilities.
The whole point is that even if Iran is the best at producing pistachios, then even though they are better than us at producing pistachios, if the thing that we do best of the things it\’s even possible that we can do is produce pistachios then pistachios we should produce. Yes, even though Iran is better at it than we are.
Grr, Grr, Grrr…..