Answer:
Common market.
Step-by-step explanation:
In order to spur trade, Cormoran, Brithea, and Asmakush decided on economic integration where there were no barriers to trade between the three countries, they agreed on a common external trade policy, and allowed factors of production to move freely between the three countries. In short, the three countries formed a common market.
A common market can be defined as a formal agreement between a group of countries in which they adopt a common external tariff on products imported from countries outside the union. It is simply a type of market involving the formal organization of countries who have collectively agree to trade freely with one another with eliminated internal tariffs but imposes a common external tariff on trade with other countries.
Common market was founded in 1958 and was made up of countries like Luxembourg, France, Belgium, Netherlands, West Germany and Italy.
The main purpose and advantage of the common market is that, it avails member countries the opportunity to move goods, people, services and capital freely.