We leverage a natural experiment, where a large national automotive racing organization switched from leaded to unleaded fuel, to study how ambient lead exposure and nutrition impact learning in elementary school. This provides quasi-experimental evidence linking measured quantities of lead...

We add to the small set of studies that investigate adaptation to low income among the poor and extend the analysis to education and health. In accordance with previous studies, we find that beliefs about the amounts of income necessary to get by and live well increase with both own household...

"An estimated 20 million children born each year are at risk of brain damage from in utero iodine deficiency, the only micronutrient deficiency known to have significant, non-reversible effects on cognitive development. Cognitive damage from iodine deficiency disorders (IDD) has potentially...