Alert programs are central to strategies to reduce the health impacts of air pollution in many jurisdictions. Evidence that they work, however, is sparse - indeed the majority of published studies fail to find a significant impact of alerts on behavior. Alerts particularly seek to influence...

We provide detailed empirical evidence of a direct effect of air pollution on the efficient operation of the New York Stock Exchange, linking short-term variations in fine particulate matter (PM2.5) in Manhattan to movements in the S&P 500. The effects are substantial - a one standard deviation...

We provide the first evidence that short-term exposure to air pollution affects the work performance of a group of highly-skilled, quality-focused employees. We repeatedly observe the decision-making of individual professional baseball umpires, quasi-randomly assigned to varying air quality...