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Brass Relational Logit Model×Coale-Trussell Model×
FieldDemographyDemography
FamilyRegression modelRegression model
Year of origin19711974
OriginatorWilliam BrassAnsley J. Coale & T. James Trussell
TypeTwo-parameter relational mortality modelParametric model of marital fertility by age
Seminal sourceBrass, W. (1971). On the scale of mortality. In W. Brass (Ed.), Biological Aspects of Demography. Taylor & Francis / Barnes & Noble. ISBN: 9780850660425Coale, 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. link ↗
AliasesBrass Logit System, Brass Logit Life-Table Model, Two-Parameter Logit Mortality Model, Brass İlişkisel Logit ModeliCoale-Trussell Fertility Model, M-m Fertility Model, Model Marital Fertility Schedule, Coale-Trussell Doğurganlık Modeli
Related44
SummaryThe Brass relational logit model is a two-parameter system for representing and smoothing a life table by relating it to a chosen standard. Introduced by William Brass in 1971, it transforms the survivorship function with a logit and posits that the logits of any two life tables are linearly related, so that an entire age pattern of mortality can be summarized by just two parameters — a level parameter and a parameter governing the balance of childhood versus adult mortality.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.
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ScholarGateCompare methods: Brass Relational Logit Model · Coale-Trussell Model. Retrieved 2026-06-24 from https://scholargate.app/en/compare