Respuesta :
In a situation described in the question where member countries remove all barriers to the trade of goods and services with other member countries, but are permitted to establish their own policies with non-member countries Is known as an economic partnership.
I would say that what these three countries are proposing a form of free trade by removing tariffs so that they will allow products from the other 2 countries to enter their economy freely and this can work provided that each country has strong and unique products that the other countries will buy without damaging the economy of any of the countries.