Unobserved time effects confound the identification of climate change impacts.
Journal Article (Journal Article)
A recent study by Feng et al. [Feng S, Krueger A, Oppenheimer M (2010) Proc Natl Acad Sci USA 107:14257-14262] in PNAS reported statistical evidence of a weather-driven causal effect of crop yields on human migration from Mexico to the United States. We show that this conclusion is based on a different statistical model than the one stated in the paper. When we correct for this mistake, there is no evidence of a causal link.
Full Text
Duke Authors
Cited Authors
- Auffhammer, M; Vincent, JR
Published Date
- July 2012
Published In
Volume / Issue
- 109 / 30
Start / End Page
- 11973 - 11974
PubMed ID
- 22783021
Pubmed Central ID
- PMC3409766
Electronic International Standard Serial Number (EISSN)
- 1091-6490
International Standard Serial Number (ISSN)
- 0027-8424
Digital Object Identifier (DOI)
- 10.1073/pnas.1202049109
Language
- eng