TY  - JOUR
A1  - Rosenzweig, M.R.
A1  - Wolpin, K.I.
T1  - Testing the quantity-quality fertility model: the use of twins as a natural experiment
Y1  - 1980
DO  - 10.2307/1912026
JF  - Econometrica: journal of the Econometric Society
VL  - 48
IS  - 1

ER  -