David Ricardo, a famous English economist of the 19th century, stressed that a nation has a comparative advantage in those products for which its efficiency relative to other nations is the highest....

David Ricardo, a famous English economist of the 19th century, stressed that a nation has a comparative advantage in those products for which its efficiency relative to other nations is the highest. He argued in favor of specialization and trade based on comparative, not absolute, advantage. From a global perspective, what would be the “advantage” of such a system?