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Published: 02 July 2018
Fig. 3 Estimated temperature-fertility relationship: Different functional forms for temperature. In the spline model, the estimates come from a cubic polynomial spline function with knots at daily mean temperatures (in degrees Fahrenheit) of 10, 30, 40, 70, and 90. The diurnal model captures
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Journal Article
Demography (1970) 7 (1): 93–120.
Published: 01 February 1970
... repetitive cycle, age composition must also be repetitive with the same cycle length. Under these conditions annual births follow a path that is an exponential multiplied by a periodic time-function. If the time variation of fertility is a small amplitude sinusoidal oscillation, the periodic component...
View articletitled, The use of fourier analysis to express the relation between time variations in <span class="search-highlight">fertility</span> and the time sequence of births in a closed human population
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for article titled, The use of fourier analysis to express the relation between time variations in <span class="search-highlight">fertility</span> and the time sequence of births in a closed human population
Journal Article
Demography (1984) 21 (1): 109–128.
Published: 01 February 1984
... Function Crude Death Rate Intrinsic Growth Rate Fertility Pattern Mortality Change References Arthur W. B. ( 1981 ). The Economics of Risks to Life . American Economic Review , 71 , 54 – 64 . Arthur W. B. ( 1981 ). The Analysis of Causal Linkages in Demographic Theory...
Journal Article
Demography (1981) 18 (2): 231–244.
Published: 01 May 1981
...Jan M. Hoem; Dan Madsen; Jørgen Løvgreen Nielsen; Else-Marie Ohlsen; Hans Oluf Hansen; Bo Rennermalm Abstract This paper reports the outcome of an exercise in curve fitting to annual sets of Danish age-specific fertility rates for the years 1962 to 1971 by means of least squares. Functions fitted...
Journal Article
Demography (1979) 16 (3): 455–473.
Published: 01 August 1979
... assumptions about linear and nonlinear changes in mortality risks affecting various cohorts of individuals. 30 12 2010 © Population Association of America 1979 1979 Infant Mortality Infant Death Fertility Function Marital Fertility Cumulative Mortality References Arriaga E...
Journal Article
Demography (1997) 34 (4): 551–563.
Published: 01 November 1997
.... These indexes are closely connected with the age-distribution dynamics and contain more refined information about the distribution of age among the old. 12 1 2011 © Population Association of America 1997 1997 Income Inequality Fertility Function Stochastic Dominance Fertility Decline...
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Published: 12 July 2011
Fig. 3 Modeling the five-year decrements in Phase II during the fertility transition: (a) observed five-year decrements (dots) with least-squares fit of the decline function to the data points, and (b) parameterization of the decline function
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Journal Article
Demography (1976) 13 (1): 19–35.
Published: 01 February 1976
... ). Moscow : Statistika . Brass W. ( 1960 ). The Graduation of Fertility Distributions by Polynomial Functions . Population Studies , 14 , 148 – 162 . 10.2307/2172011 Clark Colin ( 1967 ). Population Growth and Land Use . New York : St. Martin’s Press, Inc . Elderton...
Journal Article
Demography (1972) 9 (1): 35–50.
Published: 01 February 1972
...Edmund M. Murphy; Dhruva N. Nagnur Abstract In this paper an attempt is made to refine the method of fitting the Gompertz function to the cumulative fertility rates by using iterative techniques. The method is tested with the historical data series for the Canadian population. The demographic...
Journal Article
Demography (1979) 16 (3): 339–358.
Published: 01 August 1979
... fertility rates. The second concerns the fraction of couples in the nineteenth century who acted effectively to reduce their fertility and the third deals with the importance of abortion as a family-limiting practice among white couples in the nineteenth century. OVERVIEW This paper utilizes the functional...
View articletitled, Quantitative aspects of marriage, <span class="search-highlight">fertility</span> and family limitation in nineteenth century America: Another application of the coale specifications
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for article titled, Quantitative aspects of marriage, <span class="search-highlight">fertility</span> and family limitation in nineteenth century America: Another application of the coale specifications
Journal Article
Demography (1976) 13 (2): 251–257.
Published: 01 May 1976
...S. Mitra Abstract The inconsistencies inherent in the one-sex models created a need for the construction of what are known as marriage functions, especially for the measurement of fertility. But attempts to develop marriage functions have been frustrated by the inability of the proposed functions...
View articletitled, Effect of adjustment for sex composition in the measurement of <span class="search-highlight">fertility</span> on intrinsic rates
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for article titled, Effect of adjustment for sex composition in the measurement of <span class="search-highlight">fertility</span> on intrinsic rates
Journal Article
Demography (2011) 48 (3): 815–839.
Published: 12 July 2011
...Fig. 3 Modeling the five-year decrements in Phase II during the fertility transition: (a) observed five-year decrements (dots) with least-squares fit of the decline function to the data points, and (b) parameterization of the decline function ...
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View articletitled, Probabilistic Projections of the Total <span class="search-highlight">Fertility</span> Rate for All Countries
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for article titled, Probabilistic Projections of the Total <span class="search-highlight">Fertility</span> Rate for All Countries
Includes: Supplementary data
Journal Article
Demography (1978) 15 (4): 541–548.
Published: 01 November 1978
... reproduction is a product of the cooperation between the two sexes, we have attempted in this paper to define the sex-age-specific fertility rates as a function not only of age but also of time, where the latter is implicitly introduced in the model through the sex composition of the reproductive population...
Journal Article
Demography (2021) 58 (1): 295–320.
Published: 01 February 2021
... to estimate the effect of fertility preferences and contraceptive intentions on the cumulative incidence function of contraceptive behaviors, accounting for intervening pregnancy, female background covariates, loss to follow-up, and complex survey design. We find that women's contraceptive intentions...
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View articletitled, A Panel Study of <span class="search-highlight">Fertility</span> Preferences and Contraceptive Dynamics in the Presence of Competing Pregnancy Risks in Uganda
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for article titled, A Panel Study of <span class="search-highlight">Fertility</span> Preferences and Contraceptive Dynamics in the Presence of Competing Pregnancy Risks in Uganda
Includes: Supplementary data
Journal Article
Demography (1979) 16 (2): 329–338.
Published: 01 May 1979
... of a population. This parameter can be implicitly expressed in terms of the net-maternity distribution. The parameters and r incompletely incorporate the age-specific fertility and mortality pattern of a population; distinct populations may have the same growth rate but different net-maternity functions; distinct...
Journal Article
Demography (1967) 4 (1): 172–195.
Published: 01 March 1967
... of the percentage of married women was eliminated from the analysis of multiple and partial correlations. The data suggest that the urban-rural differential is a non-linear function of the urban-rural migration. A more complete explanation of the divergence between urban and rural child-woman fertility ratios...
Journal Article
Demography (2016) 53 (5): 1261–1281.
Published: 16 September 2016
... technology diffusion. The maximum SRB levels reached in a population are influenced by how the readiness to abort rises as a function of the fertility decline. The model reveals a number of interesting insights on the microdynamics that underpin the sex ratio transition. Even low levels of son preference...
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View articletitled, The Dynamics of Son Preference, Technology Diffusion, and <span class="search-highlight">Fertility</span> Decline Underlying Distorted Sex Ratios at Birth: A Simulation Approach
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for article titled, The Dynamics of Son Preference, Technology Diffusion, and <span class="search-highlight">Fertility</span> Decline Underlying Distorted Sex Ratios at Birth: A Simulation Approach
Includes: Supplementary data
Journal Article
Demography (1974) 11 (4): 587–611.
Published: 01 November 1974
...Lolagene C. Coombs Abstract A new method for measuring preferences for number of children is presented and related to the subsequent fertility of a panel of married women over a five-year period. The I -scales, developed on the basis of unfolding theory, reflect the individual’s utility function...
Journal Article
Demography (1989) 26 (3): 515–522.
Published: 01 August 1989
... higher than the rate among the Bangladesh victims and that the Ethiopian famine-related mortality was general and not a function of household socioeconomic variables. The data also show a 26 percent lower total fertility rate among famine victims. 12 1 2011 © Population Association of America...
Journal Article
Demography (2022) 59 (3): 975–994.
Published: 01 June 2022
...Eric Bonsang; Vegard Skirbekk Abstract Cognitive decline is a widespread concern as populations grow older. However, population aging is partly driven by a decrease in fertility, and family size may influence cognitive functioning in later life. Prior studies have shown that fertility history...
View articletitled, Does Childbearing Affect Cognitive Health in Later Life? Evidence From an Instrumental Variable Approach
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for article titled, Does Childbearing Affect Cognitive Health in Later Life? Evidence From an Instrumental Variable Approach
Includes: Supplementary data
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