title: [Old rich and young poor].
authors.forename: A
authors.initials: A
authors.lastname: Sauvy
mesh_terms: D003710:Demography; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D012942:Social Sciences
keywords: Demographic Aging; Demographic Factors; Demography; Population; Population Characteristics; Population Dynamics; Population Theory; Social Sciences