In parts of Asia, South Caucasus, and the Balkans, son preference is strong enough to trigger significant levels of sex selection, result in the excess mortality of girls, and skew child sex ratios in favor of boys. Every year, 1.8 million girls under the age of five go "missing" because of the...

"The apparently inexorable rise in the proportion of "missing girls" in much of East and South Asia has attracted much attention amongst researchers and policy-makers. An encouraging trend was suggested by the case of South Korea, where child sex ratios were the highest in Asia but peaked in the...