@techreport{Kearney2025,
author = {Kearney, M.S. and Levine, P.B.},
title= {Why is fertility so low in high income countries?},
year = {2025},
doi = {10.3386/w33989},
publisher = {National Bureau of Economic Research},
address = {Cambridge, MA},
institution = {NBER Working Paper 33989},
}