sequential id from 1 to 5225
grew up near 2-yr college
grew up near 4-yr college
educ in 1976
age in 1976
nls weight for 1976 cross-sect
lwage (outliers trimmed) 1976
=1 if black
=1 if in Metropolitan Area in 1976
=1 if live in South
age in 1976 squared