Answer :
When this is formed by nations to advance trade it is referred to as a Free Trade Area.
What is a free trade area?
- A zone comprising of several nations where they don't charge each other much customs/ import duties.
- Allows for easier trade.
The purpose of a free trade area is to encourage trade amongst members but it can lead to a few members dominating if they produce more than the other members.
Find out more on free trade areas at https://brainly.com/question/8515719.