Chay and Greenstone (2003)estimated the effect of the Clean Air Act of 1970 by comparing the health outcomes of people in attainment areas with those of people in nonattainment areas both before and after the law was passed.What did they find?
A) Reduced emissions led to a decrease in infant mortality.
B) Reduced emissions did not affect infant mortality.
C) The Clean Air Act of 1970 did not affect emissions in any states.
D) The Clean Air Act of 1970 affected different regions of the country in the same way.

Question

Quizplus · Accepted Answer

Chay and Greenstone found that the implementation of the Clean Air Act of 1970, which led to reduced emissions, was associated with a decrease in infant mortality in attainment areas compared to nonattainment areas.

Chay and Greenstone (2003)estimated the Effect of the Clean Air