observation identifier
individual obs number
Stata Month, merged
Year for MONIS=8, Year+1 for MONIS=4
=1 if female
=1 if nonwhite
log real wage, $1984
=1 if married, spouse present
=1 if married female
=1 if private sector
sector of employment
=1 if black
education category, 5 cats
=1 if member or covered by union
union transition
10 year age categories, m8
=1 if same industry
=1 if same occupation
change in log wage
change in ed categories
change in union status
change in sector