Using a unique dataset linking preschool blood lead levels (BLLs), birth, school, and detention data for 120,000 children born 1990-2004 in Rhode Island, we estimate the impact of lead on behavior: school suspensions and juvenile detention. We develop two instrumental variables approaches to...

Recent research on Head Start, an enriched preschool program for poor children that effects on test scores fade out' more quickly for black children than for white children. This" paper uses data from the 1988 wave of the National Educational Longitudinal Survey to show that" black children who...

We examine the effect of air pollution on school absences using unique administrative data for elementary and middle school children in the 39 largest school districts in Texas. These data are merged with information from monitors maintained by the Environmental Protection Agency. To control for...