Format
A dataframe containing :
- exp
- years of full-time work experience
- wks
- weeks worked
- bluecol
- blue collar ?
- ind
- works in a manufacturing industry ?
- south
- resides in the south ?
- smsa
- resides in a standard metropolitan statistical are ?
- married
- married ?
- sex
- a factor with levels (male,female)
- union
- individual's wage set by a union contract ?
- ed
- years of education
- black
- is the individual black ?
- lwage
- logarithm of wage
Source
Cornwell, C. and P. Rupert (1988) “Efficient estimation with panel data: an empirical comparison of instrumental variables estimators”, Journal of Applied Econometrics, 3, 149--155. Panel study of income dynamics.