Following a 30-year boy-to-girl birth rate imbalance, up to 800,000 ‘extra’ men born since the mid-1980s will be unable to find a South Korean woman to marry. That has big demographic consequences.
After 35 years of consistently strict government control over family size, China’s so-called “one child policy” seems to be winding down – at least for some. Recent headlines quote the authorities in Shanghai…
The human sex ratio, which is usually defined in terms of the number of males per 100 females, varies greatly between countries and regions. The biological norm is for the sex ratio at birth to be about…