Answer:
1. little or no trade fees between countries.
2. opens up jobs... (however it brings others to work in different countries which can have a NEGATIVE AFFECT in Some countries , however that is done by the corporations)
3. you get awesome stuff from other countries... for example . you can get Mejji chocolate from japan in the US . and japan can have Hershey Chocolate .....
4. Both Countries Businesses Will make profit.....