Lalonde experimental dataset (see cited reference).
data(LL)A data frame with 722 observations on the following 10 variables.
treatedtreatment variable indicator
ageage
educationyears of education
blackrace indicator variable
marriedmarital status indicator variable
nodegreeindicator variable for not possessing a degree
re74real earnings in 1974
re75real earnings in 1975
re78real earnings in 1978 (post-treatment outcome)
hispanicethnic indicator variable
u74unemployment in 1974 indicator variable
u75unemployment in 1975 indicator variable
Lalonde (1986) Evaluating the Econometric Evaluations of Training Programs with Experimental Data, The American Economic Review, 76(4), 604-620.