In low-and middle-income countries (LMICs), naturally occurring social networks may be
particularly vital to health outcomes as extended webs of social ties often are the principal …

Cultural evolutionists have long been interested in the problem of why fertility declines as
populations develop. By outlining plausible mechanistic links between individual decision …

Why are men, like other primate males, usually the aggressors and risk takers? Why do
women typically have fewer sexual partners? In Why Sex Matters, Bobbi Low ranges from …

Decades of research on human fertility has presented a clear picture of how fertility varies,
including its dramatic decline over the last two centuries in most parts of the world. Why …

The behavioral sciences have flourished by studying how traditional and/or rational
behavior has been governed throughout most of human history by relatively well-informed …

Low fertility across Europe highlights the need to understand reproductive decisions in high-
income countries better. Availability of support may be one factor influencing reproductive …

It is widely assumed that as populations become more market integrated the 'inner circles' of
people's social networks become less densely connected and family-oriented. This …

Explaining why fertility declines as populations modernize is a profound theoretical
challenge. It remains unclear whether the fundamental drivers are economic or cultural in …

This article presents a biosocial model of fertility decline, which integrates ecological‐
economic and informational‐cultural hypotheses of fertility transition in a unified theoretical …

The diffusion of 'modern'contraceptives—as a proxy for the spread of low-fertility norms—has
long interested researchers wishing to understand global fertility decline. A fundamental …