1-20 of 53 Search Results for

Scalar Model

Sort by
Journal Article
Demography (1977) 14 (4): 591–592.
Published: 01 November 1977
...Robert Schoen Abstract Despite the apparent discrepancy, the scalar increment-decrement model of Schoen (1975), described by equations (3) and (4), is consistent with the Rogers-Ledent matrix formulation shown in equation (I). Either approach may be preferable in certain specific instances...
Journal Article
Demography (2021) 58 (4): 1423–1443.
Published: 01 August 2021
... means are based on the MGCFA scalar invariance models. The latent means for the non-Hispanic White natives group are set to 0; this is the reference group. Latent means of the other groups are estimated as a difference score between their means and the mean of the reference group. Higher scores...
FIGURES
Includes: Supplementary data
Journal Article
Demography (2005) 42 (3): 537–558.
Published: 01 August 2005
... advances in estimation algorithms have led to the wider use of fully Bayesian models for small-area estimation of scalar rates (e.g., Besag, York, and Mollie 1991 on the incidence of cancer; Assunyao, Reis, and Oliveira 2001; Bernadinelli et al. 2000; Fisher and Asher 2000; Gelfand, Zhu, and Carlin 2001...
Journal Article
Demography (1998) 35 (4): 497–504.
Published: 01 November 1998
... the only one pos- sible, and our task here thus devolves to evaluating Watts's criticisms of our approach. In most cases, these criticisms assume that our advocacy of A is unconditional, whereas in fact we have proposed a general modeling framework that allows researchers to test and reject scalar measures...
Journal Article
Demography (2013) 50 (5): 1615–1640.
Published: 17 September 2013
... the various indices in matrix notation and then apply matrix calculus to obtain the sensitivity and elasticity of each index to changes in parameters (e.g., Caswell 2006 , 2009 , 2011 ). Because this study focuses on human demography, we focus on the age-classified model. Nevertheless, these results could...
FIGURES | View All (9)
Includes: Supplementary data
Journal Article
Demography (2014) 51 (3): 835–856.
Published: 09 May 2014
... Exchange Models  Full 164 2,432.6 357  Scalar (W/Bl > W/Br > Br/Bl) 172 2,439.5 263  Scalar (W/Bl = W/Br > Br/Bl) 172 2,496.5 320 Market Exchange Models  Full 116 395.1 –1,073  Scalar (W/Bl > W/Br, Br/Bl = 0) 148 670.3 –1,202  Scalar (W/Bl = W/Br, Br/Bl = 0...
FIGURES | View All (6)
Includes: Supplementary data
Journal Article
Demography (2003) 40 (4): 621–635.
Published: 01 November 2003
... that makes it possible to specify the size and immediate past birth trajectory of the QH model at any point in time. It shows that the product ma- trix M0,t is equal to factors reflecting (1) the product of the scalar growth rates (c and k), (2) diagonal matrices reflecting the age compositions of the stable...
Journal Article
Demography (1998) 35 (4): 505–508.
Published: 01 November 1998
... scalar measures of segrega- tion are tested within the general modeling framework? The advocacy of the log-odds ratio cannot be justified by reference to log-linear modeling. In their empirical work, GC investigate a narrow class of log-linear models differing in the functional form of the exponent...
Journal Article
Demography (2014) 51 (5): 1755–1773.
Published: 03 October 2014
...Geng Niu; Bertrand Melenberg Abstract The vast literature on extrapolative stochastic mortality models focuses mainly on the extrapolation of past mortality trends and summarizes the trends by one or more latent factors. However, the interpretation of these trends is typically not very clear...
FIGURES | View All (6)
Includes: Supplementary data
Journal Article
Demography (1969) 6 (3): 287–299.
Published: 01 August 1969
... Period Cyclical Model Model Life Table Fertility Schedule References Brauer A. ( 1961 ). On the characteristic roots of power-positive matrices . Duke Mathematical Journal , 28 , 291 – 296 . 10.1215/S0012-7094-61-02840-X Coale Ansley J. ( 1965 ). Birth rates, death...
Journal Article
Demography (1998) 35 (4): 475–487.
Published: 01 November 1998
... for the kth decade, and all other symbols are defined as before. This shift effect is a scalar mea- sure of segregation that is purged of compositional effects. If the shift-effect model fits the data, then a single parameter ad- equately captures over-time variability in sex segregation. As row 4 of Table 1...
Journal Article
Demography (2005) 42 (3): 575–594.
Published: 01 August 2005
... a scalar k(t), with minimized modeling error T w L L £2 (x, t). The second stage of the LC method is to adjust k(t) to fit the reported life t=Ox=O expectancy at time t, ignoring the resulting small increase in fitting errors. This second stage makes the model fit historical life expectancy exactly (see...
Journal Article
Demography (2023) 60 (1): 327–342.
Published: 01 February 2023
... ( 0 ) denotes the s-age at which there are no survivors left in the population. Note that, from this perspective, x ( s ) is a function of s , whereas s denotes a scalar. Instead of taking chronological age as what varies over a lifetime, survival is what varies...
FIGURES | View All (6)
Includes: Supplementary data
Journal Article
Demography (1976) 13 (4): 521–539.
Published: 01 November 1976
...-composition of the Leslie model with respect to changes in age-specific birth and survival rates. 26 1 2011 © Population Association of America 1976 1976 Migration Rate Appendix Table Natural Growth Intrinsic Growth Rate Outmigration Rate References Demetrius , L. ( 1969...
Journal Article
Demography (2003) 40 (3): 543–568.
Published: 01 August 2003
... 22 societies, mostly in Europe, and compare them to other measures. Finally, I assess these techniques, suggest how they may be integrated into causal and other explanatory models, and specu- late about their applicability to other forms of segregation. MEASURES OF OCCUPATIONAL SEGREGATION Recent...
Journal Article
Demography (2020) 57 (2): 779–797.
Published: 24 March 2020
... for calculating probabilities from minimal data and for modeling populations with changing demographic rates. Constant-α estimation parallels log linear modeling, in which the αs are the fixed interactions, and the main effects are calculated from relevant data. Procedures are presented showing how an N state...
Includes: Supplementary data
Journal Article
Demography (2014) 51 (1): 185–204.
Published: 08 January 2014
... estimator for a duration model with endogenous binary variables. Results controlling for endogeneity suggest that both coresidence and working are associated with a delay in childbearing, reversing the effect of coresidence on the timing of first birth but not that of working. Women in earlier cohorts tend...
Journal Article
Demography (2019) 56 (5): 1975–2004.
Published: 28 August 2019
... of estimated slopes from an APC model under a particular constraint, and ν is a scalar fixed to some value. As Eq. ( 4 ) indicates, the true unobserved slopes α, π, and γ are simple additive transformations from the estimated slopes α * , π * , and γ * , shifted by a single arbitrary scalar, ν . Because ν...
FIGURES | View All (8)
Includes: Supplementary data
Journal Article
Demography (2013) 50 (5): 1921–1942.
Published: 20 April 2013
... test for the 1870–1920 period. We find substantial fluidity in black-mulatto classification between censuses—including notable “downward” racial mobility. Using person fixed-effects models, we also find evidence that among Southern men, the likelihood of being classified as mulatto was related...
FIGURES
Includes: Supplementary data
Journal Article
Demography (1966) 3 (2): 537–544.
Published: 01 June 1966
..., dynamic, aspatial models of growth. The temporal element is introduced by a recursive structure which operates over a sequence of unit time intervals. The spatial dimension, when it is included at all, typically is accommodated by replicating the analysis over as many areal units as comprise the study...