title: Urbanization and internal migration.
abstract: This is a survey of the U.N. Population Division's contributions to the study of urbanization and internal migration, related research, and publications.  In order to review these contributions, the relevant U.N.  publications are classified under five broad topics:  "estimates and projections of urban, rural and city populations, including problems of data comparability and methods to measure internal migration; monitoring of trends in urbanization; estimates and analyses of migration as a component of urban and metropolitan growth; studies of demographic and socio-economic aspects of urbanization, and studies of demographic and socio-economic aspects of internal migration."
mesh_terms: D003710:Demography; D004467:Economics; D004641:Emigration and Immigration; D005544:Forecasting; D005843:Geography; D007390:International Agencies; D009938:Organizations; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D011158:Population Growth; D012106:Research; D012107:Research Design; D012424:Rural Population; D012959:Socioeconomic Factors; D013223:Statistics as Topic; D014480:United Nations; D014505:Urban Population; D014507:Urbanization
keywords: Demographic Factors; Economic Factors; Estimation Technics; Geographic Factors; International Agencies; Measurement; Migration; Migration, Internal; Organizations; Population; Population Characteristics; Population Dynamics; Population Growth Estimation; Population Projection; Research Methodology; Rural Population; Rural-urban Migration; Socioeconomic Factors; Spatial Distribution; Un; Urban Population; Urban Spatial Distribution; Urbanization; World