Scenario: Moonland Union Twenty-six nations of Moonland region, have decided to cooperate with one another to eliminate trade barriers among them and create the Moonland Union. They are not sure, however, to what extent they want to cooperate. As a first stage of cooperation, the countries agree to remove all barriers to trade among themselves. Each country also maintains policies it sees fit against nonmembers. At this stage, Moonland Union can be described as a .