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The ‘laboratory’ is a closed, stable population with five age groups and a dynamic process represented by a compact Leslie matrix. The new element is sex-selective abortion. We consider nine stopp...
Objective: The paper explores the population effects of male preference stopping rules and of alternative combinations of fertility rates and male-biased birth sex ratios.Methods: The ‘laboratory’ is ...
Background: The intergenerational transmission of fertility has received much attention in demography. This has been done by estimating the correlation between parents’ and offsprings’ fertility. An a...
Background: The age at which childbearing begins influences the total number of children a woman bears throughout her reproductive period, in the absence of any active fertility control. For countries...
Background: Since the 1970s, birth history data have become widely available, thanks to the World Fertility survey and the Demographic and Health Surveys programs. Despite their wide availability, the...
Background: Brazil has witnessed dramatic changes in its fertility patterns in recent decades. The decline to below-replacement fertility has been accompanied by increases in the proportion of childre...
Background: There has been much concern about adverse individual and societal consequences of high fertility in sub-Saharan Africa. One concern is that children of high birth orders may have low birth...
Using the NLSY79 and NLSY79 Child and Young Adult Surveys, we investigate the effect of the age difference between siblings (spacing) on educational achievement. Because spacing may be endogenous, we ...
The role of adult men in adolescent childbearing has received heightened attention in recent years, and new policy efforts have focused on statutory rape laws as a way to reduce adolescent childbearin...
Of 1,327 children younger than two in 1986 whose mothers were participants in the National Longitudinal Survey of Youth, 61% were wanted, 34% were mistimed and 5% were unwanted. Planning status is ass...
Data from the Matlab Family Planning-Health Services Project, Bangladesh, were used to explore changes in durations of post-partum amenorrhoea, breast-feeding and birth intervals over the period 1978-...
Early in the 21st century modern contraception -- primarily hormonal methods, advanced IUDs, sterilization and condoms -- has become the main instrument of birth regulation in Northern and Western Eur...
In this paper we use calendar data from the 2000 Egyptian Demographic and Health Survey (DHS) to assess the determinants of birth interval length among women who are in union. We make use of the well-...
Major changes in childbearing patterns are continuously taking place in the majority of low-fertility populations with postponement being virtually universal. Almost everywhere the two-child family be...
Levels and trends of various facets concerning first births are continuously changing. The evidence confirms that the postponement of first births is an ongoing and persisting process which started in...

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