Tang, Shengfang; Cai, Zongwu; Fang, Ying; Lin, Ming - In: Journal of management science and engineering 6 (2021) 3, pp. 336-343
mothers. The results show strongly that the quantile effects of maternal smoking on low infant birth weight are negative and … maternal smoking during pregnancy on infant birth weight across different the mother's age. By imposing a parametric … quantile treatment effects of maternal smoking during pregnancy on her baby's birth weight across different age groups of …