title: A note on the size distribution of cities over time.
abstract: "The Pareto Law of Income Distribution is applied to the analysis of city size structures.  Particular concern is focused on the Pareto coefficient as a measure of interurban concentration, and on how this varies through time within a nation.  On the basis of evidence from 12 nations, it is argued that over time a nation tends to display a U-shaped pattern in the degree of interurban concentration, and that the higher a nation's overall level of development, the more advanced it will be in the sequence of concentration.  Consideration is given to the possibility of supporting these conclusions through cross-sectional analysis among nations.  The various bases for the proposed temporal pattern of concentration within a nation are then explored."
authors.forename: J B
authors.initials: JB
authors.lastname: Parr
mesh_terms: D003710:Demography; D004467:Economics; D005843:Geography; D011153:Population; D011154:Population Characteristics; D011156:Population Density; D011157:Population Dynamics; D012106:Research; D013997:Time Factors; D014505:Urban Population; D014507:Urbanization
keywords: Comparative Studies; Demographic Analysis; Demographic Factors; Economic Development; Economic Factors; Geographic Factors; Population; Population Characteristics; Population Density; Population Dynamics; Population Size--changes; Research Methodology; Spatial Distribution; Time Factors; Urban Population; Urban Spatial Distribution; Urbanization; World