The data file earnings.dat contains 500 observations, collected from 100 individuals that have been observed over 5 time periods.
Column | Type | Description |
1 | index | individual |
2 | index | time period |
3 | metric | monthly earnings |
4 | metric | working experience in years |
5 | metric | years of schooling |
6 | binary | 1 if male, 2 if female |