@techreport{Borjas2009,
author = {Borjas, G.J. and Friedberg, R.M.},
title= {Recent trends in the earnings of new immigrants to the United States},
year = {2009},
doi = {10.3386/w15406},
publisher = {National Bureau of Economic Research},
address = {Cambridge},
number = {NBER Working Paper 15406},
}