作者:FLINN, CJ; HECKMAN, JJ
作者单位:University of Chicago
作者:WEISBROD, BA
作者单位:University of Wisconsin System; University of Wisconsin Madison
作者:MELLOW, W; SIDER, H
作者单位:United States Department of Labor
作者:EHRENBERG, RG; DANZIGER, L; SAN, G
作者单位:National Bureau of Economic Research; Tel Aviv University