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Additive Model

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Journal Article
Demography (1971) 8 (3): 401–410.
Published: 01 August 1971
...B. Fischler; E. Peritz; J. Wingerd Abstract Perinatal mortality in a population of 403,057 births was studied with respect to age, parity, and race in an attempt to see whether an additive model could satisfactorily account for the effects of these variables. It was found that additive models...
Journal Article
Demography (1994) 31 (3): 487–507.
Published: 01 August 1994
... pronounced for poor, widowed men and (to a lesser degree) poor, divorced men. For violent/accidental deaths among men, the interaction effects are large on the basis of an additive model. Weak main and interaction effects were detected for the elderly (age 65 +). 14 1 2011 © Population...
Journal Article
Demography (1979) 16 (4): 535–547.
Published: 01 November 1979
... permits the cycle effects to vary by age is preferred over any additive model. The ratio for young women is most depressed relative to that for older women when times are “good.” 7 1 2011 © Population Association of America 1979 1979 Unemployment Rate Business Cycle Work Rate Economic...
Journal Article
Demography (2007) 44 (2): 289–305.
Published: 01 May 2007
... the importance of the education of an older adult and his or her highest-educated child after controlling for socioeconomic, demographic, and health characteristics at baseline. To gain further insight, we fit additional models based on the sample stratified by whether older adults report serious diseases...
Journal Article
Demography (1990) 27 (2): 233–250.
Published: 01 May 1990
... and gender as additional covariates, however, we have fit separate models for males and females in each of the 16 countries. For purposes of statistical estimation, we assume that the numbers of deaths (D) in the various categories of age group, year, and marital state are independent Poisson random...
Journal Article
Demography (1975) 12 (1): 81–88.
Published: 01 February 1975
... of the proposed model, an example based on Canadian data is given. 8 1 2011 © Population Association of America 1975 1975 Relative Effect Additive Model Natural Increase Canadian Data Masculinity Proportion References 1971 Census of Canada. Bulletin 1. 2–2, Population: Sex Ratios...
Journal Article
Demography (1977) 14 (2): 179–195.
Published: 01 May 1977
... no relationship with relative income. The outcome of these tests are in the expected direction, giving support to the relative income model. In addition, there is some evidence of predictive capability of the relative income model for correlative behavior. 8 1 2011 © Population Association of America...
Journal Article
Demography (1993) 30 (1): 81–102.
Published: 01 February 1993
.... In addition, hazards rather than probabilities are modeled, piecewise linear hazard functions are used, and age and parity effects are decomposed systematically. These methods permit the development of more elaborate models of changing fecundability and of heterogeneity in postpartum amenorrhea. 16 1...
Journal Article
Demography (2016) 53 (6): 2045–2074.
Published: 18 October 2016
... of imprisonment. We find that current imprisonment is associated with an increased likelihood of MPF and a decreased likelihood of fertility with the same father (compared with no additional birth) and that a history of imprisonment is associated with increased MPF in some models but not in our preferred model...
Journal Article
Demography (1977) 14 (4): 455–479.
Published: 01 November 1977
...Ronald Demos Lee Abstract This paper develops a stock adjustment model relating total expected births to conventional aggregate fertility rates for married women over 25. Each year, cohorts bear about 20 percent of their additional expected births. Aggregate U.S. rates have been consistent...
Published: 25 October 2016
Fig. 2 Heterogeneous direct effects of grandparents’ education on grandchildren’s education by family structure and race. The first two points in each subgraph refer to estimates of average parent and grandparent effects from the additive models in Table 4 . The other points refer to estimates More
Journal Article
Demography (2010) 47 (2): 393–414.
Published: 01 May 2010
... the SEM to represent our phenotypic models, we use Mx to conduct both univariate and multivariate behavioral genetic analyses with the selected variables. Our results indicate that one or more genes acting within a gene network have additive effects that operate through child-number desires to affect both...
Journal Article
Demography (1971) 8 (4): 537–540.
Published: 01 November 1971
... will eventually be reached where costs exceed benefits, and parents will not desire an additional pregnancy. Although the Heer-Smith paper is in- genious and enlightening, more attention should be given to the behavioral as- sumptions underlying the model. It is artificial, of course, to assume that par- ents...
Published: 01 April 2022
Fig. 3 Ratio of completed fertility comparing forced migrants (those born in ceded areas) and people born in present-day Finland, by age at forced migration. Model 1 has no controls; model 2 controls for home ownership and education; and model 3 is the same as model 2 with additional controls More
Published: 01 April 2022
Fig. 3 Ratio of completed fertility comparing forced migrants (those born in ceded areas) and people born in present-day Finland, by age at forced migration. Model 1 has no controls; model 2 controls for home ownership and education; and model 3 is the same as model 2 with additional controls More
Journal Article
Demography (1988) 25 (3): 415–427.
Published: 01 August 1988
... alternatives is modeled as a function of the characteristics of the alternatives, rather than (or in addition to) the characteristics of the individual making the choice. We argue that this feature of conditionallogit makes it more appropriate for estimating behavioral models. In this article, the conditional...
Journal Article
Demography (1980) 17 (1): 1–11.
Published: 01 February 1980
... but not enough better to justify the additional cost. 7 1 2011 © Population Association of America 1980 1980 Census Tract Reproductive Behavior Married Couple Utility Model Additional Child References Arnold Fred , & Fawcett James T. ( 1975 ). The Value of Children...
Journal Article
Demography (2024) 61 (2): 439–462.
Published: 01 April 2024
... to obtain. I present a Bayesian hierarchical model framework for prediction of mortality rates at a small or subnational level. By combining ideas from demography and epidemiology, the classical mortality modeling framework is extended to include an additional spatial component capturing regional...
Includes: Supplementary data
Journal Article
Demography (1984) 21 (3): 383–404.
Published: 01 August 1984
... populations for 1980, using 1970 base data, for 106 counties and 553 places in two states. Comparisons of the model’s projections to 1980 Census counts reveal mean percentage absolute differences of 10 percent for counties and 14 percent for places. In addition, the model’s accuracy was comparable...
Journal Article
Demography (1976) 13 (2): 251–257.
Published: 01 May 1976
.... In addition to simplicity in the definition and form, the conditions leading toward stability can also be established. Interestingly enough, the intrinsic rate for this two-sex model lies in the interval determined by the rates obtained from the two one-sex models. 26 1 2011 © Population...