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Journal Article
Estimates of fecundability from a truncated distribution of conception times
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Demography (1975) 12 (2): 291–301.
Published: 01 May 1975
... the truncated samples. Large sample properties of the estimators are also studied. Examples using the Hutterite and the Princeton Fertility Survey data are given. 8 1 2011 © Population Association of America 1975 1975 Maximum Likelihood Estimator Moment Estimator Moment Estimate Factorial...
Journal Article
Population estimates from longitudinal records in otherwise data-deficient settings
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Demography (1983) 20 (3): 273–284.
Published: 01 August 1983
... Trapping Time Capture Time Sample Moment References Anderton, D. L., L. L. Bean, J. D. Willigan, and G. P. Mineau. 1982. A Macrosimulation Approach to the Investigation of the Fertility Transition. Paper presented at the American Sociological Association, September 6–10, San Francisco, California...
Journal Article
Estimators of a type I geometric distribution from observations on conception times
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Demography (1970) 7 (3): 349–360.
Published: 01 August 1970
... samples, we here present: the covariance matrix (where defined) of the moment estimators, methods of obtaining maximum likelihood estimates and their covariance matrix, and the variances of estimates of specified moments of the fecundability of the sample. Results were obtained for three sets of data...
Journal Article
A model for estimating adolescent sterility among married women
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Demography (1977) 14 (1): 103–104.
Published: 01 February 1977
... = .217514. The estimates show that 24 percent of the women in the sample were not ovulating at the time of the survey. This group of women took, on an average, 4.67 years after the marriage to resume ovulation. REFERENCES Replacing the first sample moments (about origin) for M h M 2 , and M 3 gives three...
Journal Article
Evaluation of the Olsen Technique For Estimating the Fertility Response to Child Mortality
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Demography (1983) 20 (3): 391–405.
Published: 01 August 1983
... a consistent estimate for r by correcting the instrumental variables (IV) estimator: f = rIV - pupun/Cov(d;ln;, d;) (2) where rIV is the instrumental variables estimator, Covtdln., d;) and o; are esti- mated using their sample moments, and Up (the standard deviation of the mortal- ity rate) and p...
Journal Article
Fertility and replacement: Some alternative stochastic models and results for Brazil
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Demography (1984) 21 (4): 519–536.
Published: 01 November 1984
... of children born and child deaths across women are expressed as nonlinear func- tions of the four basic parameters P, 11, A and er 2 Equating sample and population moments is not feasible in this situation since there are more equations (5) than unknowns (4). However, we can find the values of P, 11, A, (T2...
Journal Article
Height and the normal distribution: evidence from italian military data
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Demography (2009) 46 (1): 1–25.
Published: 01 February 2009
..., we adjust the entire distribution of height, then compute any summary statistics of interest. This can be contrasted with rst summarizing the distribution, then attempting ad hoc and independent adjustments of sample moments, as in the Costanzo/Istat standardization of mean height described earlier...
Journal Article
Empirical bayes estimation of demographic schedules for small areas
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Demography (2005) 42 (3): 537–558.
Published: 01 August 2005
... distribution, but in the small-area estimation setting it is useful to think of E[g(x,9)] as an answer to the question, Ifwe select an area at random (all areas equally likely) and then select a sample from that area, what is the expected value of the function g? For conditional moments, we add subscripts...
Journal Article
Magic Moment? Maternal Marriage for Children Born Out of Wedlock
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Demography (2014) 51 (4): 1345–1356.
Published: 03 July 2014
...Christina Gibson-Davis Abstract To test the existence of the “magic moment” for parental marriage immediately post-birth and to inform policies that preferentially encourage biological over stepparent marriage, this study estimates the incidence and stability of maternal marriage for children born...
FIGURES
Journal Article
Combining registration-system and survey data to estimate birth probabilities
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Demography (2000) 37 (2): 187–192.
Published: 01 May 2000
..., demographic analyses might exploit them with methods that formally combine registration-system and sample-survey data. Imbens and Lancaster (1994) use this approach with economic data, and report large gains in effi- ciency by incorporating marginal moments from census data with sample-survey joint...
Journal Article
In a Stationary Population, the Average Lifespan of the Living Is a Length-Biased Life Expectancy
Open Access
Demography (2022) 59 (1): 207–220.
Published: 01 February 2022
... in the online appendix . 1 The results illustrated here offer a new perspective on the relationship between cohorts, periods, and prevalent cohorts. Cohort life expectancy takes everyone who starts their lives at a single moment in time and follows that unselected sample across time. Period perspectives...
FIGURES
View articletitled, In a Stationary Population, the Average Lifespan of the Living Is a Length-Biased Life Expectancy
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Includes: Supplementary data
Journal Article
Binary Outcomes and Endogenous Explanatory Variables: Tests and Solutions with an Application to the Demand for Contraceptive Use in Tunisia
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Demography (1995) 32 (1): 111–131.
Published: 01 February 1995
... Cross Section Data.” Unpublished manuscript. Hansen L. ( 1982 ). Large Sample Properties of Generalized Method of Moments Estimators. . Econometrica , 50 , 1029 – 54 . 10.2307/1912775 Johnston J. ( 1984 ). Econometric Methods . New York : McGraw-Hill . Joreskog K...
View articletitled, Binary Outcomes and Endogenous Explanatory Variables: Tests and Solutions with an Application to the Demand for Contraceptive Use in Tunisia
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PDF
for article titled, Binary Outcomes and Endogenous Explanatory Variables: Tests and Solutions with an Application to the Demand for Contraceptive Use in Tunisia
Journal Article
Distributions of Postpartum Amenorrhea: Some New Evidence
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Demography (1987) 24 (3): 413–430.
Published: 01 August 1987
..., we propose a model for a bimodal distribution of amenorrhea. The following model, however, could be used with unimodal distributions simply by allowing the mixing parameter to be one and by using only one extreme value distribution. A Parametric Model Ignoring the early mode for 'the moment, the life...
Journal Article
Estimating the Effect of Child Mortality on the Number of Births
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Demography (1980) 17 (4): 429–443.
Published: 01 November 1980
... is the mean of p. If PI" and pr are small, this can be simplified to d, = Pin + P'Ui + Ei Now plim (f) = r + cov (d,uvar (d,) which must be evaluated under the as- sumption p, is random with mean p. Both var (di ) and cov (u;d,) involve moments of order greater than two, so plim (f) de- pends upon the joint...
Journal Article
Modelling the evolution of heterogeneity in residential mobility
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Demography (1982) 19 (3): 291–299.
Published: 01 August 1982
... by its moments or by the adoption of a particular parametric form. Given a mixing distribution at time 0, f(Po) and that future movement probabilities, Ph Pz, , PT may be expressed as arbi- trary nonstationarity functions of Po, then 7T;= Modelling theEvolution of Heterogeneity in Residential Mobility...
Journal Article
The problem of induced abortion in Latin America
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Demography (1968) 5 (2): 785–799.
Published: 01 June 1968
... existing at a certain moment. 2 Incidence is the number of new cases pro- duced in a period of time and/or in a group. 788 DEJfOGRAPHY which is never known. This would not constitute a serious problem, if the con- fessed fraction was significantly the same among countries, at different moments of time...
Journal Article
The Predictive Validity of Subjective Mortality Expectations: Evidence From the Health and Retirement Study
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Demography (2013) 50 (2): 569–589.
Published: 15 November 2012
... bootstrap all standard errors based on 500 replicate samples drawn with replacement from the original estimation sample. Table 4 presents the estimates of this latent factor model. The first two columns list the observed second moments involving the three forecasts. The variance of the SSFs is larger...
FIGURES
Journal Article
Further reflections on changes in fertility expectations and preferences
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Demography (1984) 21 (3): 423–429.
Published: 01 August 1984
...- vantage of the ordinal nature of all the variables and calculated values of tau and gamma separately for each of the four parity groups. In addition, we con- verted each of the variables to an inter- val scale by assigning equal distance between adjacent ordinal categories and computed product moment...
Journal Article
Subjective efficacy and ideal family size as predictors of favorability toward birth control
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Demography (1970) 7 (3): 329–339.
Published: 01 August 1970
... DEMOGRAPHY, valurne7, number 3, August 1970 TABLE 2.-Product-moment CorreIations Be- tween Index of Favorability Toward Birth ControI and Each of Two Psychologieal and Eleven Social Predictors .Information level · · · .09 .10 .13 .22 .21 Education. · .07 .10 .11 26 .13 Newspaper exposure. · .14 .05 .04 .20...
Journal Article
Reevaluating the costs of teenage childbearing: Response to Geronimus and Korenman
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Demography (1993) 30 (2): 291–296.
Published: 01 May 1993
... sample." In our sample, for example, the differences are quite modest; they range from 0 to .06, depending on the specification, and are not statistically significant. 9 For the moment, it is simply unclear whether the differences reflect a genuine behavioral effect or some idiosyncrasies of sample...
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