TY  - BOOK
AU  - Bound,John
AU  - Solon,Gary
TI  - Double trouble : on the value of twins-based estimation of the return to schooling
AV  - BF723 .T9 B686D
PY  - 1998///
CY  - Cambridge, Mass.
PB  - National Bureau of Economic Research
KW  - TWINS
KW  - EDUCATION
KW  - WAGES
KW  - EFFECT OF EDUCATION ON
KW  - ECONOMICS
KW  - RESEARCH
ER  -