Administrative divisions of China By its political level, when a "city" is referred to, it can be a: By its actual area and population, it can be: When used in the statistical data, the word "city" may have three different meanings: It is important to specify the definition of "city" when referring to statistical data of Chinese cities, otherwise, confusion may arise. For example, Shanghai is the largest city in China by population in the urban area but is smaller than Chongqing by the population within the administration area. Before the establishment of the Qin Dynasty, China was ruled by a network of kings,
Migration in China government to control the flow of internal migration in China. However, the flow of migration is large and widespread enough to be difficult for the government to manage. "Despite the Chinese government's policy of encouraging the development of western regions of the country, China's coastal regions, and especially the province of Guangdong, experienced the largest increase in the size of the floating population. With less than 7 percent of China's population, Guangdong has 27 percent of China's floating population. The size of the floating population in Guangdong nearly tripled between the 1990 and the 2000 censuses." Such uneven migration can