Green Revolution technologies were developed and promoted to boost food supplies and foster development, both of which were expected to create "breathing space" for achieving demographic transitions in developing countries through lowered human fertility. Little comprehensive research, however, has been done on the effects of those technologies themselves on human fertility -leaving unanswered ...

Most work on the human fertility transition has focused on declines in mean fertility. However, understanding changes in the variance of reproductive outcomes can be equally important for evolutionary questions about the heritability of fertility, individual determinants of fertility and changing patterns of reproductive skew. Here, we document how variance in completed fertility among women (4...

in the last few decades, iran has experienced sharp fertility decline. studies indicate that women have a major role in childbearing; therefore, their empowerment and autonomy will lead to changes in their fertility behavior. this paper examines the relationship between family power structure and fertility behavior in the tehran city. the data is collected from around 400 women in tehran who ar...

This paper provides a review of fertility research in advanced societies, societies in which birth control is the default option. The central aim is to provide a comprehensive review that summarizes how contemporary research has explained ongoing and expected fertility changes across time and space (i.e., cross- and within-country heterogeneity). A secondary aim is to provide an analytical synt...

BACKGROUND The fertility experience in Iran suggests that the family planning programs had an effective role in the fertility reduction. This study aimed to specify patterns of marriage in Iran and especially in a northern city of Iran and to investigate the association between patterns of marriage and contraceptive use before first pregnancy and current contraceptive use. METHODS In this cro...

, number 6 , December 2016 :e 20162548 The adverse effects of poverty on health have been well documented. In response, pediatric clinicians have become increasingly focused on mitigating these effects on children’s health. 1 In March 2016, the American Academy of Pediatrics (AAP) released the first-ever policy statement on poverty, calling for pediatricians to screen and address poverty and re...

North and South Korea have both experienced demographic transition and fertility and mortality declines. The fertility declines came later in North Korea. In 1990, the population was 43.4 million in South Korea and 21.4 million in North Korea and the age and sex compositions were similar. This evolution of population structure occurred despite differences in political systems and fertility dete...