Worker ID number
Hourly wage in dollars
Female (dummy)
Nonwhite worker (dummy)
Union status (dummy)
Education in years
Potential work experience in years, age-schooling-6
Age in years
Not paid by hour (dummy)
Interaction between female and nonwhite
ln(wage)
Education and experience interaction
female==1
(female==1)*education
(female==1)*exper
nonwhite==1
(nonwhite==1)*education