Wang Jun, Xin Qian Ran
Dynamics in digital finance and its impact on SME financing
Heliyon
paper estimates impacts cumulative lead exposure shortrun discipline academic achievement elementary school students exogenous heterogeneous shock leadinwater levels within classrooms flint community schools provides treatment variation used focus understudied shortrun effects lead older children mean level classroom lead exposure disciplinary actions increased 8 actions per grade within school share students proficient math reading declined results may help explain observed disparities behavior academic achievement underprivileged groups