“…The four regions are divided according to the outline of the Eleventh Five-Year Plan for National Economic and Social Development in 2006. “The Eleventh Five-Year Plan proposes to adhere to the overall regional development strategy of promoting the development of the western region, revitalizing old industrial bases such as the northeastern region, promoting the rise of the central region and encouraging the eastern region to take the lead in development, improve the mechanism of regional coordination and interaction, and form a reasonable regional development pattern” ( 48 ), which we have also discussed ( 49 – 52 ). China's eastern region includes 13 provinces, municipalities directly under the Central Government and special administrative regions, including Hebei, Beijing, Tianjin, Shandong, Jiangsu, Zhejiang, Shanghai, Guangdong, Hainan, Fujian, Taiwan, Hong Kong and Macao; the central region includes six provinces, including Shanxi, Henan, Anhui, Hubei, Jiangxi and Hunan; the western region includes Chongqing, Sichuan, Shaanxi, Yunnan, Guizhou, Guangxi, Gansu, Qinghai, Ningxia, Tibet, Xinjiang and Inner Mongolia and other 12 provinces, autonomous regions and municipalities directly under the central government, and the northeast region includes three provinces, including Heilongjiang, Liaoning and Jilin ( Figure 1 ).…”