title: A generalized stable model with fluctuating vital rates.
abstract: The amenability of the stable population model to certain situations where net maternity function need not be invariant over time is exemplified by relating the changes in fertility at 2 time points by the equation m(a,t) = m(a) h(a,t)/h(t) where the form of h(t) is general and can be determined based on observed birth trajectories.  Using the extended form of Easterlin's hypothesis, h(t) is taken as the reciprocal of NRR at t.  The model is then applied to project NRR.
authors.forename: S
authors.initials: S
authors.lastname: Mitra
mesh_terms: D001723:Birth Rate; D003625:Data Collection; D003710:Demography; D004467:Economics; D005298:Fertility; D008423:Maternal Age; D008962:Models, Theoretical; D011153:Population; D011154:Population Characteristics; D011157:Population Dynamics; D012106:Research; D012107:Research Design; D012942:Social Sciences; D013223:Statistics as Topic; D014798:Vital Statistics
keywords: Age Specific Fertility Rate; Birth Rate; Data Analysis; Data Collection; Demographic Factors; Demography; Easterlin Hypothesis; Economic Factors; Estimation Technics; Fertility; Fertility Measurements; Fertility Rate; Mathematical Model; Measurement; Microeconomic Factors; Models, Theoretical; Population; Population Dynamics; Population Statistics; Population Theory; Research Methodology; Social Sciences; Stable Population Method; Vital Statistics