RT Journal Article SR Electronic T1 The Effect of a First Child on Female Labor Supply JF Journal of Human Resources JO J Hum Resour FD University of Wisconsin Press SP 487 OP 510 DO 10.3368/jhr.43.3.487 VO 43 IS 3 A1 Cristia, Julian P. YR 2008 UL http://jhr.uwpress.org/content/43/3/487.abstract AB Estimating the causal effect of a first child on female labor supply is complicated by the endogeneity of fertility. This paper addresses this problem by focusing on a sample of women from the National Survey of Family Growth (NSFG) who sought help to become pregnant. After a certain period, only some of these women gave birth. Results using this strategy show that having a first child younger than one year old reduces female employment by 26 percentage points. These estimates are close to OLS estimates from census data and to those from OLS and fixed-effects models on NSFG data.