Trade among nations has received much attention in the campaign for the U.S. presidency. Trading among peoples is as old as mankind. It draws from the concept of comparative advantage. A good farmer and a good hunter each can benefit by focusing on their respective specialties and trading surplus output with each other. While comparative advantage has remained a core concept, modern trade agreements are more complex as they reflect geo-political realities and include noneconomic parameters. Does more trade lead to more growth and better investment outcomes?