title: Testing for a possible non-linear relationship between income and fertility implied in the theory of demographic transition: the U.S. case, 1909-1957.
authors.forename: K V
authors.initials: KV
authors.lastname: Nagarajan
mesh_terms: D003710:Demography; D004467:Economics; D005298:Fertility; D007182:Income; D008962:Models, Theoretical; D011153:Population; D011157:Population Dynamics; D012959:Socioeconomic Factors
keywords: Demographic Factors; Demographic Transition; Economic Factors; Fertility; Income; Models, Theoretical; Population; Population Dynamics; Research Report; Socioeconomic Factors