摘要
This paper proposes a new quantile regression model to characterize the heterogeneity for distributional effects of maternal smoking during pregnancy on infant birth weight across different the mother's age.By imposing a parametric restriction on the quantile functions of the potential outcome distributions conditional on the mother's age,we estimate the quantile treatment effects of maternal smoking during pregnancy on her baby's birth weight across different age groups of mothers.The results show strongly that the quantile effects of maternal smoking on low infant birth weight are negative and substantially heterogenous across different ages.
基金
financial supports from the National Natural Science Foundation of China(NSFC)for Distinguished Scholars(71625001)
the NSFC key projects with grant numbers 71631004,72033008 and 71131008
Science Foundation of Ministry of Education of China(19YJA910003).
作者简介
Corresponding author:Ming Lin,Wang Yanan Institute for Studies in Economics and Fujian Key Laboratory of Statistical Sciences,Xiamen University,Xiamen,Fujian,361005,China.E-mail address:linming50@xmu.edu.cn.
