TY  - JOUR
AU  - Korenman,Sanders
AU  - Neumark,David
TI  - Marriage, Motherhood, and Wages
JF  - National Bureau of Economic Research Working Paper Series
VL  - No. 3473
PY  - 1990
Y2  - October 1990
UR  - http://www.nber.org/papers/w3473
L1  - http://www.nber.org/papers/w3473.pdf
N1  - Author contact info:
Sanders Korenman
School of Public Affairs
Baruch College
135 E. 22nd Street, Box D-900
New York, NY  10010
Tel: 646/660-6782
Fax: 646/660-6770
E-Mail: sanders.korenman@baruch.cuny.edu

David Neumark
Department of Economics
University of California at Irvine
3151 Social Science Plaza
Irvine, CA  92697
Tel: 949-824-8496
Fax: 949/824-2182
E-Mail: dneumark@uci.edu
AB  - We explore several problems in drawing causal inferences from cross-sectional relationships between marriage, motherhood, and wages. We find that heterogeneity leads to biased estimates of the "direct" effects of marriage and motherhood on wages (i.e., effects net of experience and tenure); first-difference estimates reveal no direct effect of marriage or motherhood on women's wages. We also find statistical evidence that experience and tenure nay be endogenous variables in wage equations; IV estimates suggest that both OLS cross-sectional and first-difference estimates understate the direct (negative) effect of children on wages.
ER  -