One-Child Policy and the Rise of Man-Made Twins

44 Pages Posted: 6 Sep 2014

See all articles by Wei Huang

Wei Huang

Harvard University - Department of Economics; NBER; IZA Institute of Labor Economics

Xiaoyan Lei

Peking University - CCER

Yaohui Zhao

Peking University

Abstract

This paper investigates how people respond to the distorted incentives of One-Child Policy by examining its impact on twin births in China. The analysis using population census data shows that the One-Child Policy accounts for more than one-third of the increase in twin births since the 1970s. Further investigation finds that the One-Child Policy is associated with a larger birth gap of twins with prior births and greater height difference between twins. These findings suggest that the increase in twin births can partly be explained by parents registering single children as twins in order to avoid the policy violation punishment.

Keywords: twins, one-child policy, China

JEL Classification: J08, J11, J13

Suggested Citation

Huang, Wei and Lei, Xiaoyan and Zhao, Yaohui, One-Child Policy and the Rise of Man-Made Twins. IZA Discussion Paper No. 8394. Available at SSRN: https://ssrn.com/abstract=2492401

Wei Huang (Contact Author)

Harvard University - Department of Economics ( email )

Littauer Center
Cambridge, MA 02138
United States

NBER ( email )

1050 Massachusetts Avenue
Cambridge, MA 02138
United States

IZA Institute of Labor Economics ( email )

P.O. Box 7240
Bonn, D-53072
Germany

Xiaoyan Lei

Peking University - CCER ( email )

No. 38 Xueyuan Road
Haidian District
Beijing, Beijing 100871
China

Yaohui Zhao

Peking University ( email )

Department of Economics
Beijing 100871
China

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