air pollution levels, and (2) what is the impact of modern air pollution levels on infant health? Our setting is … suggest that ambient pollution levels, specifically particulate matter, still have large impacts on weekly infant mortality … rates. Our results also illustrate the importance of weather controls in measuring pollution's impact on infant mortality …

the form of residential sorting, can lead to non-random assignment of pollution, economists have employed a wide range of … quasi-experimental techniques to develop causal estimates of the effect of pollution. Second, economic research has placed a … biological and behavioral effects of pollution and for proper welfare calculations. Lastly, economic research has expanded the …