According to the level of development, organizations of regional economic integration can be divided into several basic types, such as economic integration of single commodity, preferential trade arrangement, free trade area, zollverein, common market, economic union, complete economic integration. 按照发展程度,区域经济一体化组织可以划分为单一商品上的经济一体化、优惠贸易安排(PTA)、自由贸易区、关税同盟、共同市场、经济同盟、完全经济一体化等基本类型。
Before 1990s, Special preferential trade arrangement pact ( shortened form PTA ) as the main mechanism of economic cooperation of ASEAN exerted some driving forces to the economic cooperation of ASEAN. 90年代以前,《特惠贸易安排协定》(简称PTA)作为东盟经济合作的主要机制,对东盟经济合作曾起到一定的推动作用。
ASEAN Preferential Trade Arrangement(PTA) : Retrospect and Revaluation 东盟特惠贸易安排:回顾与评价