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Another Explanation for Sex Selection in China?

In a podcast called “Misadventures in Baby-Making,” we explored China’s one-child policy as a cause of sex-selective abortion and, therefore, skewed male-female sex rations. A new working paper (abstract; PDF) by Douglas Almond, Hongbin Li, and Shuang Zhang points to another possible culprit: China’s economic liberalization. From the abstract:

Following the death of Mao in 1976, abandonment of collective farming lifted millions from poverty and heralded sweeping pro-market policies. How did China’s excess in male births respond to rural land reform? In newly-available data from over 1,000 counties, a second child following a daughter was 5.5 percent more likely to be a boy after land reform, doubling the prevailing rate of sex selection. Mothers with higher levels of education were substantially more likely to select sons than were less educated mothers. The One Child Policy was implemented over the same time period and is frequently blamed for increased sex ratios during the early 1980s. Our results point to China’s watershed economic liberalization as a more likely culprit.