This idea is often formally referred to as the "Law of Comparative Advantage", and most economists do believe it provides a logical defense of free trade. That

This idea is often formally referred to as the "Law of Comparative Advantage", and most economists do believe it provides a logical defense of free trade. That said, there are some interesting criticisms of it [1]. [1] https://en.wikipedia.org/wiki/Comparative_advantage#Criticism https://en.wikipedia.org/wiki/Comparative_advantage#Criticis...