TY  - RPRT
A1  - Bound, J.
A1  - Jaeger, D.A.
A1  - Baker, R.
T1  - The cure can be worse than the disease: A cautionary tale regarding instrumental variables
Y1  - 1993
PB  - The National Bureau of Economic Research 
CY  - Cambridge
IS  - NBER technical working paper no. 137

ER  -