title: [[A treatise on the change in age structure and its determinants: an appraisal of the World Population Plan of Action]].
abstract: "The purpose of the present paper is to review...recent...trends in population age structure in the world and its major regions, to assess the determinants of those trends, and to explore [issues] relating to recent and projected changes in the age structure of population and relationships of those changes to economic and social developments."  Comparisons are made between developed and developing countries concerning age structure, life expectancy, birth and mortality rates, and demographic aging. (SUMMARY IN ENG)
authors.forename: S
authors.initials: S
authors.lastname: Kono
mesh_terms: D017677:Age Distribution; D000367:Age Factors; D001723:Birth Rate; D003710:Demography; D004467:Economics; D005298:Fertility; D005843:Geography; D008017:Life Expectancy; D008136:Longevity; D009026:Mortality; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D012106:Research; D012922:Social Change
keywords: Age Distribution; Age Factors; Birth Rate; Comparative Studies; Death Rate; Demographic Aging; Demographic Factors; Economic Development; Economic Factors; Fertility; Fertility Measurements; Geographic Factors; Length Of Life; Life Expectancy; Mortality; Population; Population Characteristics; Population Dynamics; Research Methodology; Social Development; Studies; World