The tragedy of the world’s 160 million missing girls isn’t that they’re “missing.” The tragedy is that they’re dead.
Here is the link. It's good, but I skimmed it and accidentally misread the last line as "The tragedy is that ... Paul Krugman is off today." Fair enough.
Is there a market solution to the problem? Chinese women are in high demand on the American marriage market. Chinese parents want their daughters to be able to work and be educated in the U.S. Enter F-1F visa, for female Asian students only.
It sounds stupid. Won't letting women leave China worsen the gender imbalance? But here's the catch: the increased demand for girls would vastly outpace the number of girls who actually leave. You can see the effect with health workers, where countries that make it easy to leave to work as nurses or doctors in the First World have more doctors and nurses. (Michael Clemens has done the most research on that topic and gathered the data and made the graph I saw showing the relationship.)