区域经济一体化的发展阶段及动机区域经济一体化的发展阶段:自由贸易区。所谓的自由贸易区要求区域内的成员国之间消除彼此的贸易限制,但对区域外的国家则保持各自的关税结构;关税同盟。关税同盟是指区域内成员国在具有共同的对外贸易政策的同时,也对外实行相同的关税政策;共同市场。共同市场是在关税同盟的基础上,允许了生产要素在区域内成员国之间的自由流动;经济同盟。经济同盟是指成员国拥有了共同的市场,并在该市场上实行一定统一 The Development Stage and Motivation of Regional Economic Integration The Development Stage of Regional Economic Integration: Free Trade Zone. The so-called free trade zone requires that member states within the region eliminate their trade restrictions, while maintaining separate customs structures for countries outside the region; customs union. Customs union refers to the member states in the region have a common foreign trade policy, but also the same foreign tariff policy; common market. The common market, on the basis of the Customs Union, allows the free movement of factors of production among the member countries in the region; and economic alliances. Economic alliance refers to the member countries have a common market, and in the market to implement a certain unity