Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/211496
Authors: 
Zhang, Xin
Wang, Yixuan
Chen, Xi
Zhang, Xun
Year of Publication: 
2020
Series/Report no.: 
GLO Discussion Paper 452
Abstract: 
This paper is one of the first to examine the associations between prenatal sunshine exposure and birth outcomes, specifically the incidence of low birth weight (LBW) and small for gestational age (SGA), based on a nationally representative birth record dataset in China. During the sample period in the 1990s, migration was limited in rural China, allowing us to address the identification challenges, like residential sorting and avoidance behaviors. We found a nonlinear relationship between the length of sunlight and birth outcomes. In particular, prenatal exposure to increasing sunshine was associated with a reduction in the incidence of LBW and SGA, especially in the second trimester during pregnancy. This finding was consistent with the clinical evidence suggesting positive effects of sunshine on birth outcomes via obtaining vitamin D or relieving maternal stress.
Subjects: 
Sunshine Duration
Low Birth Weight
Small for Gestational Age
China
JEL: 
I12
J13
I18
Q51
Document Type: 
Working Paper

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