Survey of Income and Program Participation (SIPP) 1996 Panel Longitudnal File ctl_ferd.asc -- Longitudnal Weight File Data Dictionary ctl_ferd.zip -- Longitudnal Weight Data File sip96lgtd.asc -- Longitudnal Core Data Dictionary l96puw[1-12].zip -- Wave 1-12 Core Longitudnal Data Files Data and dictionaries were accessed from http://www.bls.census.gov/ferretftp.htm Jean Roth, jroth@nber.org, August 6, 2002