What are the favorable factors for the opening up of the Pearl River Delta (from three aspects)?

The natural environment is an important factor affecting economic development. The Pearl River Delta is located in the tropics and subtropics, with superior climatic conditions, good agricultural foundation, dense population and abundant labor force. Therefore, I think the superior geographical position is an important factor for the Pearl River Delta to become the frontier of China's opening to the outside world.

In addition, due to a large number of immigrants flowing from here to "Nanyang" in history, Guangdong has become the main hometown of overseas Chinese, and today's hometown of overseas Chinese can obtain modern economic development conditions such as overseas capital, technology, management and market. This makes the economic development of the Pearl River Delta region have a human factor.

In the early 1980s, China implemented the policy of reform and opening up. 1980 established four special economic zones (Shenzhen, Zhuhai, Shantou and Xiamen), three in Guangdong and two in the Pearl River Delta. 1985 turned the whole Pearl River Delta region into an open coastal economic zone. Give strong support to the Pearl River Delta region from the policy.