nswdemo
data frame contains 722 rows and 10 columns.
These data are pertinent to an investigation of the way that
earnings changed, between 1974-1975 and 1978, for an experimental
treatment who were given job training as compared with a control
group who did not receive such training.The psid1
data set is an alternative non-experimental "control"
group. psid2
and psid3
are subsets of psid1
,
designed to be better matched to the experimental data than
psid1
. Note also the cps1
, cps2
and cps3
datasets (
data(nswdemo)
Lalonde, R. 1986. Evaluating the economic evaluations of training programs. American Economic Review 76: 604-620. Smith, J. A. and Todd, P.E. 2005,"Does Matching overcome. LaLonde?s critique of nonexperimental estimators", Journal of Econometrics 125: 305-353.
Dehejia, R.H. 2005. Practical propensity score matching: a reply to Smith and Todd. Journal of Econometrics 125: 355-364.
psid1
, psid2
, psid3