The Effects of Pollution on Human Cognition & Performance

While I am not a big fan of shifting to an economic argument for things that are already plenty bad for other better reasons (see diversity in the workplace, immigration policy, healthcare, etc.), this article by Austin Frakt on the economic cost of pollution reports on the results of a number of studies linking pollution to low performance in work and school. This study of baseball umpires was particularly troubling:

Pollution may also affect the quality of work, which is much harder to measure. An intriguing study in the Journal of the Association of Environmental and Resource Economists got at this issue by examining how accurately baseball umpires called balls and strikes under different pollution conditions.

Since 2008, pitch calls have been checked by Major League Baseball with an electronic system. In a typical game, an umpire makes 140 ball/strike calls. When there was a 150 percent increase over average carbon monoxide levels or the same increase in small particulate matter, the study found an average of 1.4 additional incorrect calls. Levels of pollution that high occur in about one in 10 games.

Imagine what the rest of us, especially kids, are getting wrong when we’re in polluted areas (i.e. many American cities). (via @tylercowen)

• Austin Frakt
• economics
• science