TY  - BOOK
AU  - Heckman,James J.
AU  - Smith,Jeffrey A.
TI  - The pre-program earnings DIP and the determinants of participation in a social program : implications for simple program evaluation strategies
AV  - HD5715.2 H424P
PY  - 1999///
CY  - Cambridge, Mass
PB  - National Bureau of Economic Research
KW  - UNITED STATES. JOB TRAINING PARTNERSHIP ACT
KW  - OCCUPATIONAL TRAINING
KW  - UNITED STATES
KW  - EVALUATION
KW  - RESEARCH
KW  - ECONOMETRIC MODELS
ER  -