| Variable name | Variable type | Variable interpretation |
| Dependent variable |
|
|
| Monthly wage logarithm | Continuous variable | The natural logarithm of monthly average wage |
| Independent variable |
|
|
| Primary education years | Continuous variable | Number of years of education for junior high school and below |
| Secondary education years |
|
|
| Ordinary high school education years | Continuous variable | Number of years of high school education |
| Vocational and technical education years | Continuous variable | Number of years of vocational and technical education |
| Years of higher education | Continuous variable | Number of years of college and above education |
| work experience Work experience square | Continuous variable Continuous variable | Age minus 6 minus the square of the work experience of the years of number of years of education |
| Good health Health status in general
Height Z value
male marital status A set of ownership dummy variables A group of professional types of dummy variables A set of provincial dummy variables | virtual variable virtual variable
Continuous variable
virtual variable virtual variable virtual variable virtual variable
virtual variable
| Good health = 1, others = 0 Health status in general = 1, others = 0 Individual height minus average height divided by standard deviation Male = 1, female = 0 Married = 1, unmarried = 0 Omitted Omitted
Omitted |