title: City-size distribution and the size of urban systems.
abstract: "This paper is an analysis of the city-size distribution for thirty-five countries of the world in 1975; the purpose is to explain statistically the regularity of the rank-size distribution by the number of cities included in the urban systems.  The rank-size parameters have been computed for each country and also for four large urban systems in which several population thresholds have been defined.  These thresholds seem to have more influence than the number of cities included in the urban system on the regularity of the distribution."  The data are from the U.N. Demographic Yearbook.
mesh_terms: D003710:Demography; D005843:Geography; D011153:Population; D011154:Population Characteristics; D011156:Population Density; D011157:Population Dynamics; D013223:Statistics as Topic; D014505:Urban Population; D014507:Urbanization
keywords: Demographic Factors; Geographic Factors; Population; Population Characteristics; Population Dynamics; Population Size; Spatial Distribution; Statistical Studies; Urban Population; Urban Spatial Distribution; Urbanization; World