By Vigdor Jacob   in The Journal of Economic Perspectives

ISSN:0895-3309|22|4|135-154

American Economic Association‎(2008)‎

Access to resources Favorite 20.927584

By VIGDOR JACOB L.   LADD HELEN F.   MARTINEZ ERIKA   in Economic Inquiry

ISSN:1465-7295|52|3|1103-1119

Oxford University Press‎(2014)‎

Access to resources Favorite 10.463792