ARTICLE: Where Boys Were Kings, a Shift Toward Baby Girls, By CHOE SANG-HUN, New York Times, December 23, 2007

As with all such things, the sex-ratio imbalance self-corrects.

Why? In a pre-modern world, it's better to have sons in your old age, but once you reach modernity, it's the other way around.

(Thanks: kilngoddess)