title: The gap of economic development expanding between eastern China and middle, western China.
mesh_terms: D001208:Asia; D002681:China; D003710:Demography; D003906:Developing Countries; D004467:Economics; D005202:Asia, Eastern; D012106:Research; D012959:Socioeconomic Factors
keywords: Asia; China; Developing Countries; Eastern Asia; Economic Development; Economic Factors; Inequalities; Multiregional Analysis; Research Methodology; Socioeconomic Factors