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Reproduction Rate

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Journal Article
Demography (1983) 20 (1): 111–115.
Published: 01 February 1983
...S. Mitra Abstract Building upon an idea presented by Espenshade, Bouvier and Arthur (1982) about the eventual stationarity of a population subjected to a net reproduction rate of less than one and a constant stream of immigration, this note reports the consequences upon the birth trajectory for all...
Journal Article
Demography (1973) 10 (4): 543–565.
Published: 01 November 1973
...Prithwis Das Gupta Abstract Since it is logically impossible to hold constant both male and female age-specific fertility rates, the intrinsic growth rates or the net reproduction rates for males and females, based on that assumption, are internally inconsistent. The interactive two-sex model...
Published: 17 August 2020
Fig. 4 Factual and counterfactual rates of educational reproduction. Counterfactual 1 (CF1) and Counterfactual 2 (CF2) relate to counterfactual rates of educational reproduction if high-educated had fertility behavior of low-educated (CF1), and vice versa (CF2). See Table B 4 in the online More
Journal Article
Demography (1976) 13 (4): 507–512.
Published: 01 November 1976
... r 1 t . It is shown that B 1 / B 0 = ( R 0 − R 1 )/[( r 0 − r 1 ) R 0 Z 1 ], where R 0 , R 1 are the net reproduction rates before and after the change, and expected age giving birth for the stable population after the change. The age structure and transients resulting from the change are also...
Journal Article
Demography (1971) 8 (1): 71–80.
Published: 01 February 1971
... Reproduction Rate, all before the drop in fertility, and μ the mean age of childbearing afterwards. This expression is derived in the first place for females on the stable assumption; extension to both sexes is provided, and comparison with real populations shows the numerical error to be small where fertility...
Journal Article
Demography (1978) 15 (1): 131–134.
Published: 01 February 1978
...P. Cerone; A. Keane Abstract The momentum of population growth problem of Keyfitz is generalized to contain a gradual change of the age-specific birth rate to the level of bare replacement. Assuming a time dependence for the net maternity function of the form , R being the net reproductive rate, we...
Journal Article
Demography (1976) 13 (4): 513–519.
Published: 01 November 1976
...S. Mitra Abstract If age-specific birth rates m, of a stable population drop abruptly to m x / R 0 , where R 0 is the net reproduction rate, then, according to Keyfitz, the size of the ultimate stationary population relative to.that at the beginning of the process is given by I = be 0 0 R 0 − 1...
Journal Article
Demography (1970) 7 (4): 417–432.
Published: 01 November 1970
... the same mortality rates and having a fertility schedule equal to that of the observed population divided by its net reproduction rate. In this manner it is shown that about one-quarter to one-third of the growth of most current high-growth populations can be attributed to non-stationarity of their age...
Journal Article
Demography (1971) 8 (3): 319–330.
Published: 01 August 1971
.... Regression analyses based on data for 57 countries c. 1960 show that fertility (gross reproduction rate) varies cross-sectionally with region as well as with level of development (as measured by per capita income, percent labor force in primary sector, expectation of life, illiteracy rate). Using equations...
Journal Article
Demography (1991) 28 (1): 159–173.
Published: 01 February 1991
... are also presented. When the initial population is stable, momentum can be approximated as a function of the net reproduction rate alone. 9 1 2011 © Population Association of America 1991 1991 Initial Population Stationary Population Stable Population Total Momentum Replacement Level...
Journal Article
Demography (1982) 19 (1): 125–133.
Published: 01 February 1982
... fertility and mortality schedules) lead to a stationary population. Neither the level of the net reproduction rate nor the size of the annual immigration affects this conclusion; a stationary population eventually emerges. How this stationary population is created is studied, as is the generational...
Journal Article
Demography (1974) 11 (3): 397–406.
Published: 01 August 1974
...Ladislav T. Ruzicka Abstract The impact of changes in age patterns of nuptiality on the net reproduction rate is examined using life table techniques and assuming that age-specific fertility within marriage and fertility outside of marriage are fixed. In the second section, a standardization...
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 (1975) 12 (3): 447–454.
Published: 01 August 1975
... then causes the transition. For both of these reproductive changes, the short-time birth trajectory is found in terms of the "reproductive value." The reproductive value can be tabulated along with other vital rates for a popula- tion as it does not depend upon the popu- lation age distribution. The short...
Journal Article
Demography (1976) 13 (2): 251–257.
Published: 01 May 1976
... Feeney Griffith M. ( 1972 ). Marriage Rates and Population Growth: The Two-Sex Problem in Demography . Berkeley : University of California . Karmel P. H. ( 1947 ). The Relations between Male and Female Reproduction Rates . Population Studies , 1 , 249 – 274 . 10.2307/2172302...
Journal Article
Demography (1973) 10 (4): 507–515.
Published: 01 November 1973
... in per capita income as large as 20 percent could be accounted for by variations in vital rates. 27 1 2011 © Population Association of America 1973 1973 Capita Income Reproduction Rate Vital Rate Current Fertility Rate Demographic Yearbook References Adelman , Irma...
Journal Article
Demography (1990) 27 (1): 121–129.
Published: 01 February 1990
..., Bouvier, & Arthur 1982; Mitra 1983; Mitra & Cerone 1986) have shown that the indefinite continuation of a regime of age-specific fertility and mortality rates and a constant number of immigrants with unchanging age composition will eventually make the population stationary when the net reproduction rate...
Journal Article
Demography (1974) 11 (2): 337–360.
Published: 01 May 1974
... and fertility rates is such as to give a net reproduction rate equal to one, the cor- responding projection leads to a station- ary population. It is a projection of equi- librium. Frejka followed these principles in his book. His assumptions are as fol- lows: 1. Mortality Assumptions For developed countries...
Journal Article
Demography (1969) 6 (3): 261–269.
Published: 01 August 1969
...Nathan Keyfitz Abstract Some populations, like that of the United States in the 1950’s, have a smaller proportion of women of reproductive age than they would ultimately attain with continuance of their age-specific birth and deaths rates, a continuance which produces the condition known...
Journal Article
Demography (1978) 15 (4): 559–569.
Published: 01 November 1978
...- placement, net reproduction rates, are the sums of terms in the corresponding net maternity functions. Here we must con- sider both cohort and period net mater- nity functions and their corresponding net reproduction rates. These are given by CNRR t = btl + Stbt+l,2 for the cohort of women in the first age...