Does Early Life Exposure to Cigarette Smoke Permanently Harm Childhood Welfare? Evidence from Cigarette Tax Hikes

Evidence suggests that excise taxes on tobacco improve fetal health. However, it remains unknown if smoke exposure in early life causes lasting harm to children. I find that in utero exposure to a dollar increase in the state cigarette tax causes a 10 percent decrease in sick days from school and a 4.7 percent decrease in having two or more doctor visits. I present additional evidence for decreases in hospitalizations and asthma. This supports the hypothesis that exposure to cigarette smoke in utero and infancy carries significant medium-term costs, and that excise taxes can lead to lasting intergenerational improvements in well-being. (JEL H25, H71, I12, J13)