NLS ID
Interview year
Birth year
Age in current year
Race
1 if married, spouse present
1 if never married
Current grade completed
1 if college graduate
1 if not SMSA
1 if central city
1 if south
Industry of employment
Occupation
1 if union
Weeks unemployed last year
Total work experience
Job tenure, in years
Usual hours worked
Weeks worked last year
ln(wage/GNP deflator)