This directory contains 4 different versions of the NBER Trade, Immigration and the Labor Market data files: unix: unix format stata files pc: pc format stata files sasv5tpt: SAS version 5 transport format data sets sasv6xpt: a single SAS version 6 format library in export format See the README file in each directory for further explanation. John Abowd generic e-mail: John_Abowd@cornell.edu internet: abowd@abowd.ilr.cornell.edu voice mail: 607-255-8024 fax: 607-255-7774 secretary (Jean Brown): 607-255-3136 (This README file is in MS-DOS text format.)