@techreport{Geruso2025,
author = {Geruso, M. and Spears, D.},
title= {Childless or child fewer? Childlessness and parity progression where fertility is below replacement},
year = {2025},
doi = {10.3386/w33913.},
publisher = {National Bureau of Economic Research},
address = {Cambridge, MA},
institution = {NBER Working Paper 33913},
}