Description Usage Format Details Source References
The Smith-Todd subset of Lalonde's treated units versus PSID (Panel Study of Income Dynamics) control individuals
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A data frame with 2598 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
Smith, J., Todd, P. (2005a) Does Matching Overcome Lalonde's Critique of Nonexperimental Estimators?, Journal of Econometrics, 125(1-2), 305-353.
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