| 1. | In the late seventies , the mainland began to implement the open door policy , and our labour intensive industries , applying the principle of comparative advantage , relocated their production facilities to the pearl river delta region where the price of land and labour is even more competitive 随内地开始实施门户开放政策,本港劳工密集的工业进一步将其生产设施迁往价格较具竞争力的珠江三角洲一带。 |