Numerous policymakers have accepted claims in the public health literature
that the United States is in the middle of a serious epidemic of childhood
lead poisoning, due primarily to lead paint in the housing stock. This arti
cle analyzes some of the most influential lead paint epidemiological studie
s from an economics perspective and finds evidence that the claimed effects
of lead on intelligence, school success, and other outcomes may be grossly
exaggerated. In addition, the main cost-benefit analysis used by policymak
ers to advocate lead paint abatement of the entire U.S. housing stock conta
ins serious mathematical errors and strikingly implausible economic assumpt
ions. A corrected model shows that the proposed national abatement policy i
s likely to yield no net benefit.