Illicit Drug Use and Educational Attainment
利用全国教育纵向研究数据，通过控制入学前特征和工具变量法，发现高中期间使用大麻和可卡因会减少完成的受教育年限。
This paper uses data from the National Education Longitudinal Study to estimate the association between illicit drug use during high school and the number of years of schooling completed. The analysis accounts for the possibility that drug use is endogenous using two methods: (1) by controlling for individual-level characteristics measured before high school entrance; and (2) by using an instrumental variables method, with state drug policies and 8th grade school characteristics as identifying variables. Findings suggest that marijuana use and cocaine use in high school are associated with reductions in the number of years of schooling completed.