Description Usage Format Details Source References
The Lalonde subset of DW treated units versus CPS (Current Population Survey) control individuals
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A data frame with 16177 observations on the following 10 variables.
treatedtreated variable indicator
ageage
educationyears of education
blackrace indicator variable
marriedmarital status indicator variable
nodegreeindicator variable of not possessing a degree
re74real earnings in 1974
re75real earnings in 1975
re78real earnings in 1978 (post treatment outcome)
hispanicethnic indicator variable
These two sets of treated and control units can be hardly matched.
see references
Dehejia, R., Wahba, S. (1999) Causal Effects in Nonexperimental Studies: Reevaluating the Evaluation of Training Programs, Journal of the American Statistical Association, 94, 1053-1062.
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