@article{Levine2003,
author = {Levine, D.I. and Painter, G.},
title= {The schooling costs of teenage out-of-wedlock childbearing: Analysis with a within-school propensity-score-matching estimator},
year = {2003},
doi = {10.1162/003465303772815790},
journal = {Review of Economics and Statistics},
volume = {85},
number = {4},
pages = {884--900},
}