data(GerberGreenImai)GerberGreenImai, uses Imai's
propensity score model to estimate the causal effect of
get-out-the-vote telephone calls on turnout. The propensity score
model fails to balance age.Gerber, Alan S. and Donald P. Green. 2005. ``Correction to Gerber and Green (2000), replication of disputed findings, and reply to Imai (2005).'' American Political Science Review 99: 301-313.
Imai, Kosuke. 2005. ``Do Get-Out-The-Vote Calls Reduce Turnout? The Importance of Statistical Methods for Field Experiments.'' American Political Science Review 99: 283-300.
Hansen, Ben B. Hansen and Jake Bowers. forthcoming. ``Attributing Effects to a Cluster Randomized Get-Out-The-Vote Campaign.'' Journal of the American Statistical Association.
Match and MatchBalance,
GenMatch, balanceUV, ks.boot
lalonde