@techreport{Wei2011,
author = {Wei, S.J. and Zhang, X.},
title= {Sex ratios, entrepreneurship, and economic growth in the People’s Republic of China},
year = {2011},
doi = {10.3386/w16800},
publisher = {National Bureau of Economic Research},
address = {Cambridge, MA},
institution = {NBER working paper 16800},
}