COMMON MARKET: An agreement among two or more nations to eliminate trade restrictions with each other, to adopt a common trade policy with other nations, and to allow free movement of resources among their countries. There is, however, no effort to adopt common monetary or fiscal policies. This is considered the third of four levels of integration among nations. Customs union, economic union, and free-trade area are the other three levels. See also | foreign trade | foreign sector | monetary policy | fiscal policy | customs union | economic union | free-trade area | trading bloc |