@techreport{Monstad2011,
author = {Monstad, K. and Propper, C. and Salvanes, K.},
title= {Is teenage motherhood contagious? Evidence from a natural experiment},
year = {2011},
publisher = {Centre for Economic Policy Research},
address = {Washington, D.C.},
number = {CEPR Discussion Paper No. DP8505},
}