When Zhang Mengqian announced that she was looking for a boyfriend on a "wish wall" at her university in south-west China, she must have been hoping that she'd get a few eligible responses.
All potential suitors had to do, her message said, was turn up outside her dorm building on a certain date and time and shout her name.


Imagine her surprise then, when she looked down from her window at the appointed hour:

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The worldwide war on baby girlsTechnology, declining fertility and ancient prejudice are combining to unbalance societies



In January 2010 the Chinese Academy of Social Sciences (CASS) showed what can happen to a country when girl babies don’t count. Within ten years, the academy said, one in five young men would be unable to find a bride because of the dearth of young women—a figure unprecedented in a country at peace.



The number is based on the sexual discrepancy among people aged 19 and below. According to CASS, China in 2020 will have 30m-40m more men of this age than young women. For comparison, there are 23m boys below the age of 20 in Germany, France and Britain combined and around 40m American boys and young men. So within ten years, China faces the prospect of having the equivalent of the whole young male population of America, or almost twice that of Europe’s three largest countries, with little prospect of marriage, untethered to a home of their own and without the stake in society that marriage and children provide.


Gendercide—to borrow the title of a 1985 book by Mary Anne Warren—is often seen as an unintended consequence of China’s one-child policy, or as a product of poverty or ignorance. But that cannot be the whole story. The surplus of bachelors—called in China guanggun, or “bare branches”— seems to have accelerated between 1990 and 2005, in ways not obviously linked to the one-child policy, which was introduced in 1979. And, as is becoming clear, the war against baby girls is not confined to China.
http://www.economist.com/world/inter...ry_id=15636231
Parts of India have sex ratios as skewed as anything in its northern neighbour. Other East Asian countries—South Korea, Singapore and Taiwan—have peculiarly high numbers of male births. So, since the collapse of the Soviet Union, have former communist countries in the Caucasus and the western Balkans. Even subsets of America’s population are following suit, though not the population as a whole.



The real cause, argues Nick Eberstadt, a demographer at the American Enterprise Institute, a think-tank in Washington, DC, is not any country’s particular policy but “the fateful collision between overweening son preference, the use of rapidly spreading prenatal sex-determination technology and declining fertility.” These are global trends. And the selective destruction of baby girls is global, too.


Boys are slightly more likely to die in infancy than girls. To compensate, more boys are born than girls so there will be equal numbers of young men and women at puberty. In all societies that record births, between 103 and 106 boys are normally born for every 100 girls. The ratio has been so stable over time that it appears to be the natural order of things.
That order has changed fundamentally in the past 25 years.
100 million girls are 'missing'. And the imbalance seems to increase, rather than decrease.