title: Urban concentration and rural growth:  a two-sector analysis.
abstract: "This paper examines the mechanism and extent of urban concentration using a two-sector growth model.  The cause of urbanization is sought in the existence of urban scale economies.  Assuming that temporary production decisions are concerned with optimal labor inputs and that profit incomes are reinvested according to relative profitability, the model shows persistent tendency for urban concentration and the transition of the economy from unlimited to limited labor supply.  A simple example suggests that urban concentration is more likely than rural expansion with urban contraction."
authors.forename: Y
authors.initials: Y
authors.lastname: Kubo
mesh_terms: D003710:Demography; D004467:Economics; D004651:Employment; D005376:Financial Management; D005843:Geography; D006280:Health Workforce; D018803:Models, Economic; D008962:Models, Theoretical; D011153:Population; D011154:Population Characteristics; D012106:Research; D012424:Rural Population; D012939:Social Planning; D012959:Socioeconomic Factors; D014505:Urban Population; D014507:Urbanization
keywords: Demographic Factors; Development Planning; Economic Conditions; Economic Development; Economic Factors; Economic Model; Financial Activities; Geographic Factors; Human Resources; Labor Force; Macroeconomic Factors; Manpower Needs; Models, Theoretical; Population; Population Characteristics; Research Methodology; Rural Spatial Distribution--changes; Socioeconomic Factors; Spatial Distribution; Urban Population; Urban Spatial Distribution--changes; Urbanization; World