This is a pretty old idea that goes back to debates over David Ricardo's theory of comparative advantage in the early 1800s.
> “Free trade is God’s diplomacy. There is no other certain way of uniting people in the bonds of peace than by the bonds of interest.”
- Richard Cobden
> “Free trade is God’s diplomacy. There is no other certain way of uniting people in the bonds of peace than by the bonds of interest.” - Richard Cobden