TY  - BOOK
AU  - Heckman James J
AU  - Leamerward
TI  - Handbook of econometrics
U1  - 330.015195 
PY  - 2007///
PB  - Elsevier
KW  - Econometrics
KW  - Economic policy
KW  - Economics-philosophy
KW  - Responsibility
KW  - Truth
KW  - Uncertainty
ER  -