TY  - JOUR
A1  - Becker, G.S.
A1  - Lewis, H.G.
T1  - On the Interaction between the Quantity and Quality of Children
Y1  - 1973
DO  - 10.1086/260166
JF  - Journal of Political Economy
VL  - 81
IS  - 2
SP  - 279
EP  - -288

ER  -