For most of human history a "natural fertility" regime has prevailed throughout the world: there has been almost no conscious limitation of family size within m

Confounding all conventional wisdom, the fertility rate in the Islamic Republic of Iran fell from around 7.0 births per woman in the early 1980s to 1.9 births p

In the Age of Revolution, how did American women conceive their lives and marital obligations? By examining the attitudes and behaviors surrounding the contenti

Demography drives religious change. High-fertility societies, like most of contemporary Africa, tend to be fervent and devout. The lower a population's fertilit

Here is the full report of the 1970 National Fertility Study, a national sample survey for which thousands of women were interviewed who had been married at som