TY  - JOUR
A1  - Hotz, V.J.
A1  - Mullin, C.H.
A1  - Sanders, S.G.
T1  - Bounding Causal Effects Using Data from a Contaminated Natural Experiment: Analysing the Effects of Teenage Childbearing
Y1  - 1997
DO  - 10.2307/2971732
JF  - The Review of Economic Studies
VL  - 64
IS  - 4
SP  - 575
EP  - -603

ER  -