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Journal of the American Statistical Association / ed. W. Allen Wallis
1
Variable selection and model building via likelihood basis ..:
, In:Copies: Zentrale;
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The review of economics and statistics / publ. for Harvard University
2
Propensity score-matching methods for nonexperimental causa..:
, In:Copies: Zentrale;
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3
Propensity score matching methods for non-experimental caus..
NBER working paper series ; 6829
Copies:
Zentrale:Magazin bc 1286-6829
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4
Causal effects in non-experimental studies
re-evaluating the evaluation of training programs
NBER working paper series ; 6586
Copies:
Zentrale:Magazin bc 1286-6586