=1 if male
highest grade completed
monthly salary, Thai baht
starting wage
years on current job
previous experience
log(wage)
exper^2
=1 if high school graduate
=1 if college graduate
=1 if some graduate school
=1 if a polytech
=1 if no high school degree
log(swage)
pexper^2
male*educ
male*(educ - 14)