name of dataset: wage2
no of variables: 17
no of observations: 935

+----------+-------------------------------+
| variable | label                         |
+----------+-------------------------------+
| wage     | monthly earnings              |
| hours    | average weekly hours          |
| IQ       | IQ score                      |
| KWW      | knowledge of world work score |
| educ     | years of education            |
| exper    | years of work experience      |
| tenure   | years with current employer   |
| age      | age in years                  |
| married  | =1 if married                 |
| black    | =1 if black                   |
| south    | =1 if live in south           |
| urban    | =1 if live in SMSA            |
| sibs     | number of siblings            |
| brthord  | birth order                   |
| meduc    | mother's education            |
| feduc    | father's education            |
| lwage    | natural log of wage           |
+----------+-------------------------------+

M. Blackburn and D. Neumark (1992), “Unobserved Ability, Efficiency
Wages, and Interindustry Wage Differentials,” Quarterly Journal of
Economics 107, 1421-1436. Professor Neumark kindly provided the data,
of which I used just the data for 1980.