cps1.def wage educ age exper female black white married union northeast midwest south west fulltime metro Obs: 1000 observation subsample of cps.dat wage earnings per hour educ years of education age age in years exper experience female =1 if female black =1 if black white =1 if white married =1 if married union =1 if union member northeast =1 if northeast midwest =1 if midwest south =1 if south west =1 if west fulltime =1 if full time worker metro =1 if lives in metropolitan area Data source: Dr. Kang Sun Lee, Louisiana Department of Health and Human Services