Mara Hvistendahl is worried about girls. Not in any political, moral or cultural sense but as an existential matter. She is right to be. In China, India and numerous other countries (both developing and developed), there are many more men than women, the result of systematic campaigns against baby girls.
In nature, 105 boys are born for every 100 girls. This ratio is biologically ironclad. Between 104 and 106 is the normal range, and that's as far as the natural window goes. Any other number is the result of unnatural events.
Yet today in India there are 112 boys born for every 100 girls. In China, the number is 121-though plenty of Chinese towns are over the 150 mark. China's and India's populations are mammoth enough that their outlying sex ratios have skewed the global average to a biologically impossible 107. But the imbalance is not only in Asia. Azerbaijan stands at 115, Georgia at 118 and Armenia at 120.
What is causing the skewed ratio: abortion. If the male number in the sex ratio is above 106, it means that couples are having abortions when they find out the mother is carrying a girl. By Ms. Hvistendahl's counting, there have been so many sex-selective abortions in the past three decades that 163 million girls, who by biological averages should have been born, are missing from the world. Moral horror aside, this is likely to be of very large consequence.
In the mid-1970s, amniocentesis, which reveals the sex of a baby in utero, became available in developing countries. Originally meant to test for fetal abnormalities, by the 1980s it was known as the "sex test" in India and other places where parents put a premium on sons. When amnio was replaced by the cheaper and less invasive ultrasound, it meant that most couples who wanted a baby boy could know ahead of time if they were going to have one and, if they were not, do something about it. "Better 500 rupees now than 5,000 later," reads one ad put out by an Indian clinic, a reference to the price of a sex test versus the cost of a dowry.
Ms. Hvistendahl argues that such imbalances are portents of Very Bad Things to come. "Historically, societies in which men substantially outnumber women are not nice places to live," she writes. "Often they are unstable. Sometimes they are violent."
There is indeed compelling evidence of a link between sex ratios and violence. High sex ratios mean that a society is going to have "surplus men"-that is, men with no hope of marrying because there are not enough women. Such men accumulate in the lower classes, where risks of violence are already elevated. And unmarried men with limited incomes tend to make trouble. In Chinese provinces where the sex ratio has spiked, a crime wave has followed. Today in India, the best predictor of violence and crime for any given area is not income but sex ratio.
Book Review: Unnatural Selection - WSJ.com
(Last, "The War Against Girls," The Wall Street Journal Online, 6/18/11).
In nature, 105 boys are born for every 100 girls. This ratio is biologically ironclad. Between 104 and 106 is the normal range, and that's as far as the natural window goes. Any other number is the result of unnatural events.
Yet today in India there are 112 boys born for every 100 girls. In China, the number is 121-though plenty of Chinese towns are over the 150 mark. China's and India's populations are mammoth enough that their outlying sex ratios have skewed the global average to a biologically impossible 107. But the imbalance is not only in Asia. Azerbaijan stands at 115, Georgia at 118 and Armenia at 120.
What is causing the skewed ratio: abortion. If the male number in the sex ratio is above 106, it means that couples are having abortions when they find out the mother is carrying a girl. By Ms. Hvistendahl's counting, there have been so many sex-selective abortions in the past three decades that 163 million girls, who by biological averages should have been born, are missing from the world. Moral horror aside, this is likely to be of very large consequence.
In the mid-1970s, amniocentesis, which reveals the sex of a baby in utero, became available in developing countries. Originally meant to test for fetal abnormalities, by the 1980s it was known as the "sex test" in India and other places where parents put a premium on sons. When amnio was replaced by the cheaper and less invasive ultrasound, it meant that most couples who wanted a baby boy could know ahead of time if they were going to have one and, if they were not, do something about it. "Better 500 rupees now than 5,000 later," reads one ad put out by an Indian clinic, a reference to the price of a sex test versus the cost of a dowry.
Ms. Hvistendahl argues that such imbalances are portents of Very Bad Things to come. "Historically, societies in which men substantially outnumber women are not nice places to live," she writes. "Often they are unstable. Sometimes they are violent."
There is indeed compelling evidence of a link between sex ratios and violence. High sex ratios mean that a society is going to have "surplus men"-that is, men with no hope of marrying because there are not enough women. Such men accumulate in the lower classes, where risks of violence are already elevated. And unmarried men with limited incomes tend to make trouble. In Chinese provinces where the sex ratio has spiked, a crime wave has followed. Today in India, the best predictor of violence and crime for any given area is not income but sex ratio.
Book Review: Unnatural Selection - WSJ.com
(Last, "The War Against Girls," The Wall Street Journal Online, 6/18/11).
