In 1986, two Dutch researchers advanced a provocative hypothesis: many societies were undergoing a “Second Demographic Transition” that would lead to durably low birth rates and high degrees of ...

This paper uses a perfect foresight life cycle simulation model to examine the dynamic economic effects of baby "booms" and baby "busts" as well as the interaction of such demographic changes with ...

Demographic Research, Vol. 33 (JULY - DECEMBER 2015), pp. 561-588 (30 pages) BACKGROUND In the last half of the previous century many developed countries went through a period of decreasing fertility ...

Rising incomes, increasing levels of education — particularly in women — and a variety of social factors contribute to determining the demographic profile of India’s youth and their role in India’s ...

AS BIRTH ANNOUNCEMENTS go, it was momentous. On November 24th India’s government declared that the country’s fertility rate had dropped to 2.0 children per woman. That is below the replacement rate—at ...

Studies of evolutionary change require an estimate of fitness, and lifetime reproductive success is widely used for this purpose. However, many species face a trade-off between the number and quality ...