Productivity Spillovers From Pollution Reduction: Reducing Coal Use Increases Crop Yields

Konstantinos Metaxoglou and Aaron Smith

American Journal of Agricultural Economics, 2020, vol. 102, issue 1, 259-280

Abstract: Air pollution reduces crop yields by slowing down photosynthesis. We estimate the increase in US corn and soybean yields attributed to the recent dramatic reductions in emissions of nitrogen oxides (NOx) from electric power plants. In response to the observed changes in power plant NOx emissions over the eight‐year period from 2003–05 to 2011–13, we estimate that average corn yields improved by 2.46% and soybean yields by 1.62%. These improvements imply an increase in total surplus of $1.60 billion annually across the two crops. The estimated yield improvements vary substantially across states depending on the change in NOx emissions. For corn, they range from 0.32% to 6.87% and for soybeans, they range from 0.21% to 4.30%. The demand for the two crops is quite inelastic, which means that prices decrease by more than production increases in response to this positive productivity shock and the implied rightward shift of the crop supply curve. Due to the low elasticities of supply and demand for U.S. corn and soybeans, we conclude from a welfare analysis that these changes made consumers better off and farmers worse off.

Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
https://doi.org/10.1093/ajae/aaz044

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wly:ajagec:v:102:y:2020:i:1:p:259-280

Access Statistics for this article

More articles in American Journal of Agricultural Economics from John Wiley & Sons
Bibliographic data for series maintained by Wiley Content Delivery ().