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Author: Wang, Boqing
Resulting in 3 citations.
1. Stromsdorfer, Ernst W.
Wang, Boqing
Cao, Jian
Maternal Labor Supply and Children's Cognitive and Affective Development
Presented: San Francisco, CA, Western Economic Association Meetings, July 10, 1992. (Second Draft)
Cohort(s): Children of the NLSY79, NLSY79
Publisher: Western Economic Association International
Keyword(s): Armed Forces Qualifications Test (AFQT); Grandmothers; Maternal Employment; Memory for Digit Span (WISC) - also see Digit Span; Methods/Methodology; Mothers, Education; Peabody Individual Achievement Test (PIAT- Math); Peabody Individual Achievement Test (PIAT- Reading); Peabody Picture Vocabulary Test (PPVT); Self-Esteem; Self-Perception Profile for Children (SPPC); Verbal Memory (McCarthy Scale); Wages; Welfare; Work Hours

This paper addresses the general problem of the effect of mother's labor supply on her child or children's cognitive and affective development. This issue is of considerable policy significance in view of the recent refocus of welfare policy toward requiring single mothers who are welfare dependent to work or attend some form of schooling or training. Clearly, as this new policy focus is pursued, a child receives less nurturing from his or her natural mother. There is either less care provided overall or care is provided by a surrogate. The potential social and private costs of such a policy that may reduce direct nurturing of a child by its biological mother therefore ought to be investigated. Previous studies of this social issue have typically concentrated on a particular measure of a child's cognitive or affective development and have also tended to focus on children in a narrow age range in an effort to get more precise results and screen out the effects of such factors as schooling. Our study deals with children who have been administered the various objective cognitive (and one of the affective) measures of child development and their mothers in the NLSY Mother/Child database for 1986.
Bibliography Citation
Stromsdorfer, Ernst W., Boqing Wang and Jian Cao. "Maternal Labor Supply and Children's Cognitive and Affective Development." Presented: San Francisco, CA, Western Economic Association Meetings, July 10, 1992. (Second Draft).
2. Wang, Boqing
Maximum Likelihood Estimation With Sample Selection: An Application to the Labor Supply of Women
Ph.D. Dissertation, Washington State University, 1994
Cohort(s): NLSY79
Publisher: UMI - University Microfilms, Bell and Howell Information and Learning
Keyword(s): Labor Economics; Labor Supply; Modeling; Sample Selection; Women; Work Hours

Sample selection bias has been a focus in econometrics since the 1950s. However, previous methods did not provide efficient and robust estimates for a three-equation system with sample selection. To find efficient and robust estimates, a full information maximum likelihood (FIML) estimate model based on a trivariate logistic distribution is developed in this study. This FIML model is applied to the three-equation model of female labor supply. The data used in this study are from the 1986 National Longitudinal Survey of Youth. The empirical results in this study show that the three-equation FIML model of female labor supply provides an efficient and robust estimate for a woman's hours of work while the Heckman two-stage method does not. The three-equation FIML model was extended to a four-equation FIML model with double selection biases. The FIML models developed in this study have wide application in econometric analysis.
Bibliography Citation
Wang, Boqing. Maximum Likelihood Estimation With Sample Selection: An Application to the Labor Supply of Women. Ph.D. Dissertation, Washington State University, 1994.
3. Wang, Boqing
Cardell, N. Scott
Weeks, Gregory
Maternal Labor Supply and Children's Cognitive and Affective Performance
Working Paper, Olympia, WA: Washington State Institute for Public Policy, Evergreen State College, December 1994.
Cohort(s): Children of the NLSY79, NLSY79
Publisher: Evergreen State College
Keyword(s): Armed Forces Qualifications Test (AFQT); Cognitive Ability; Cognitive Development; Family Income; Genetics; Grandmothers; Home Environment; Home Observation for Measurement of Environment (HOME); Income Level; Inheritance; Maternal Employment; Memory for Digit Span (WISC) - also see Digit Span; Methods/Methodology; Mothers, Education; Peabody Individual Achievement Test (PIAT- Math); Peabody Individual Achievement Test (PIAT- Reading); Peabody Picture Vocabulary Test (PPVT); Selectivity Bias/Selection Bias; Self-Esteem; Self-Perception Profile for Children (SPPC); Simultaneity; Verbal Memory (McCarthy Scale); Welfare; Work Hours

Permission to reprint the abstract has not been received from the publisher.

A significant issue in welfare policy reform is whether and how to encourage single mothers to work outside the home. The research reported here is designed to address the concern that a mother's employment outside the home may adversely affect her child's affective and cognitive performance. Our estimates are corrected for both selection bias and simultaneity. We find no evidence to support concern about an adverse effect of a mother's employment outside the home on her child's performance. However, we do find that three variables strongly related to a child's home environment and genetic inheritance--mother's AFQT score and schooling and maternal grandmother's schooling--have a strong consistent positive relationship to cognitive scores. By contrast, family income has no significant positive relationship to any measure of child performance.
Bibliography Citation
Wang, Boqing, N. Scott Cardell and Gregory Weeks. "Maternal Labor Supply and Children's Cognitive and Affective Performance." Working Paper, Olympia, WA: Washington State Institute for Public Policy, Evergreen State College, December 1994.