Bangladesh probably has no absolute advantage over the U.S. in any line of work.

FORBES: No President Obama, We Can't "Outcompete" Other Countries

In other words, girls may acquire an absolute advantage over boys as a result of equal treatment.

ECONOMIST: Education and sex

And even if a country were the most efficient in every industry, giving it an absolute advantage in everything, it could not have a comparative advantage in everything.

ECONOMIST: A short tour of economic theory

Comparative advantage is a different animal from absolute advantage.

FORBES: No President Obama, We Can't "Outcompete" Other Countries

For a start, it is important not to confuse absolute and comparative advantage.

ECONOMIST: Trade winds | The