@techreport{Molloy2014,
author = {Molloy, R. and Smith, C.L. and Wozniak, A.K.},
title= {Declining migration within the US: The role of the labor market},
year = {2014},
doi = {10.3386/w20065},
publisher = {National Bureau of Economic Research},
address = {Cambridge},
number = {NBER Working Paper 20065},
}