NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Patrick Vivier, MD

Department of Community Health
Brown University Box G-S121
Providence, RI 02903

E-Mail: EmailAddress: hidden: you can email any NBER-related person as first underscore last at nber dot org

NBER Working Papers and Publications

August 2016Do Low Levels of Blood Lead Reduce Children's Future Test Scores?
with Anna Aizer, Janet Currie, Peter Simon: w22558
We construct a unique individual-level longitudinal dataset linking preschool blood lead levels with third grade test scores for eight birth cohorts of Rhode Island children born between 1997 and 2005. Using these data, we show that reductions of lead from even historically low levels have significant positive effects on children's reading test scores in third grade. Our preferred estimates use the introduction of a lead remediation program as an instrument in order to control for the possibility of confounding and for considerable error in measured lead exposures. The estimates suggest that a one unit decrease in average blood lead levels reduces the probability of being substantially below proficient in reading by 3.1 percentage points (on a baseline of 12 percent). Moreover, as we s...
 
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