@techreport{Feng2012,
author = {Feng, S. and Oppenheimer, M. and Schlenker, W.},
title= {Climate change, crop yields, and internal migration in the United States},
year = {2012},
doi = {10.3386/w17734},
publisher = {National Bureau of Economic Research},
address = {Cambridge},
institution = {NBER working paper 17734},
}