@article{Crown2014,
author = {Crown, W.H.},
title= {Propensity-score matching in economic analyses: comparison with regression models, instrumental variables, residual inclusion, differences-in-differences, and decomposition methods},
year = {2014},
doi = {10.1007/s40258-013-0075-4},
volume = {12},
pages = {7--18},
}