Urbanization in 21st century.
D003710:Demography; D004467:Economics; D004641:Emigration and Immigration; D004651:Employment; D005843:Geography; D007221:Industry; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011158:Population Growth; D011204:Poverty Areas; D012106:Research; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D014505:Urban Population; D014507:Urbanization
Demographic Factors; Economic Development; Economic Factors; Employment; Estimation Technics; Geographic Factors; Industrialization; International Migration; Land Tenure; Macroeconomic Factors; Migration; Population; Population Characteristics; Population Dynamics; Population Growth; Population Growth Estimation; Research Methodology; Rural-urban Migration; Slums; Socioeconomic Factors; Spatial Distribution; Urban Population; Urban Spatial Distribution; Urbanization; World