The federal government now confronts considerable political pressure to add CO2 to the existing set of criteria air pollutants. As with current criteria pollutants, proposals call for control of CO2, assuming that the control of the each of the three criteria pollutants is separable from the...

We use parents' decisions to treat their children's body burdens of lead to infer parental ex ante willingness to pay for reduced burdens. Willingness to pay is estimated with a data set containing 256 observations: the data were originally gathered to assess the impact of children's bodylead...