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	Coale-McNeil Marriage Model	Coale-Trussell Model
Ämnesområde	Demografi	Demografi
Familj	Regression model	Regression model
Ursprungsår	1972	1974
Upphovsperson	Ansley J. Coale & Donald R. McNeil	Ansley J. Coale & T. James Trussell
Typ	Parametric model of the age schedule of first marriage	Parametric model of marital fertility by age
Ursprungskälla	Coale, A. J., & McNeil, D. R. (1972). The distribution by age of the frequency of first marriage in a female cohort. Journal of the American Statistical Association, 67(340), 743–749.	Coale, A. J., & Trussell, T. J. (1974). Model fertility schedules: variations in the age structure of childbearing in human populations. Population Index, 40(2), 185–258.
Alias	Coale-McNeil Nuptiality Model, Coale-McNeil Model Schedule of First Marriage, Standard Nuptiality Schedule	Coale-Trussell Fertility Model, M-m Fertility Model, Model Marital Fertility Schedule, Coale-Trussell Doğurganlık Modeli
Närliggande	4	4
Sammanfattning	The Coale-McNeil model is a parametric description of how first marriages are distributed by age. Ansley Coale and Donald McNeil showed in 1972 that the age pattern of first marriage in widely different populations has a common shape, captured by a single standard curve that can be shifted and stretched. Three parameters — an origin age at which marriage starts, a scale that controls how spread out the process is, and the ultimate proportion who ever marry — reproduce almost any observed first-marriage schedule, giving demographers a compact and comparable summary of nuptiality.	The Coale-Trussell model is a two-parameter parametric description of the age pattern of marital fertility, introduced by Ansley Coale and James Trussell in 1974. It expresses observed age-specific marital fertility as a standard natural-fertility schedule scaled by an overall level parameter M and modulated by an age-increasing function of deliberate birth-control intensity, summarized by a single control parameter m.