发帖
雷达卡
One Child Policy and the Rise of Man-Made Twins
2 作者信息
[size=12.000000pt]Wei Huang, [size=12.000000pt]Xiaoyan Lei [size=8.000000pt] [size=12.000000pt]and Yaohui Zhao
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3 出处和链接（比如，NBER working paper No.11000）
PAA conference version: http://paa2013.princeton.edu/papers/130113
NYU-STERN version: http://www.stern.nyu.edu/cons/gr ... sset/con_045064.pdf
目前正在为投稿做修改，欢迎大家提意见。
Twins paper 20131114.pdf
(2.41 MB)
4 摘要
Population censuses of 1982, 1990 and 2000 and 2005 1% population survey reveal a rapid rise of twin births in China since the 1970s. Exploring provincial variations in the one-child policy regulatory fines over time, we find that one-child policy accounts for at least one third of the twins increasing. Furthermore, investigation in the China Health and Nutrition Survey reveals that an increase in policy fines by one year’s income is associated with over a one-centimeter height difference between twins of the same gender. These results are consistent with the hypothesis that the one child policy has stimulated incentives to obtain twins through methods like taking fertility drugs.
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