Findings

Moms and dads

Kevin Lewis

March 28, 2017

The Economics of Non-Marital Childbearing and The "Marriage Premium for Children"

Melissa Kearney & Phillip Levine

NBER Working Paper, March 2017

Abstract:
A large literature exists on the impact of family structure on children’s outcomes, typically focusing on average effects. We build on this with an economic framework that has heterogeneous predictions regarding the potential benefit for children of married parents. We propose that the gains to marriage from a child’s perspective depend on a mother’s own level of resources, the additional net resources that her partner would bring, and the outcome-specific returns to resources. Data from the Panel Study of Income Dynamics are consistent with the heterogeneous predictions of this framework. In terms of high school completion or avoiding poverty at age 25, the “marriage premium for children” is highest for children of mothers with high school degrees and mothers in their early/mid-20s. For the more advanced outcomes of college completion or high income at age 25, the marriage premium is monotonically increasing with observed maternal age and education.

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Divergent Trends in US Maternity and Paternity Leave, 1994–2015

Jay Zagorsky

American Journal of Public Health, March 2017, Pages 460-465

Methods: We created a publicly available ecological long-term series for measuring parental leave from 1994 to 2015 by using the Current Population Survey, which interviews about 60 000 randomly selected households monthly.

Results: The average month from 1994 to 2015 saw 273 000 women and 13 000 men on maternity or paternity leave. Maternity leave rates per 10 000 births showed no trend over 22 years (mean = 677.6). Paternity figures increased by a factor of 3, but started from a small base (14.7–54.6). We observed no national impact on maternity or paternity leave after implementation of state laws that provided paid leave. About half (51.1%) of employees on maternity or paternity leave during 2015 received paid time off. The typical woman on maternity leave was older, more likely married, more likely non-Hispanic White, and more educated than the typical woman who gave birth.

Conclusions: Although the US economy has expanded dramatically since 1994, this improvement does not appear to have translated into more women taking maternity leave.

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Everything in Moderation: Moderate Use of Screens Unassociated with Child Behavior Problems

Christopher Ferguson

Psychiatric Quarterly, forthcoming

Abstract:
The impact of children’s use of “screen” media including television and computer games, continues to be debated. The American Academy of Pediatrics (AAP) until recently recommended a relatively restrictive screen time diet of 2 h or less for most youth. A representative correlational sample of youth were assessed for links between screen time and risky behavioral outcomes. Data collection occurred in 2013 conducted by the State of Florida. Use of screens that was moderately high, in excess of the AAP’s former recommendations, but not excessive (1 SD or higher than average), was not associated with delinquency, risky behaviors, sexual behaviors, substance abuse, reduced grades or mental health problems. Even excessive screen use (1 SD or higher) was only weakly associated with negative outcomes related to delinquency, grades and depression only, and at levels unlikely to be practically significant. Results conceptually replicate those of Przybylski (2014) with a US sample for depression and delinquency as outcomes. Moderate use of screens, though in excess of the AAP’s historical recommendations, are unassociated with problem outcomes. Excessive use of screens is only weakly associated with negative outcomes, and only those related to depression and delinquency as well as reduced grades, but not risky driving, substance use, risky sex or disordered eating. Although an “everything in moderation” message when discussing screen time with parents may be most productive, results do not support a strong focus on screen time as a preventative measure for youth problem behaviors.

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Maternal employment and time investments in children

Frank Heiland, Joseph Price & Riley Wilson

Review of Economics of the Household, March 2017, Pages 53–67

Abstract:
We use data from the Panel Study of Income Dynamics and the American Time Use Survey to estimate the effect of maternal employment on time spent with children. We find that each additional 10 h of maternal work reduces mother–child quality time interaction by about 7.5 % and time reading together by 8 %. This relationship between work and quality time does not vary much based on mothers’ education and is robust to the inclusion of family or child fixed effects. There is no evidence that fathers or other relatives fill the gap in time investments due to maternal employment.

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Does Birth Spacing Affect Personality?

Bart Golsteyn & Cécile Magnée

Journal of Economic Psychology, forthcoming

Abstract:
This paper studies the causal effect of birth spacing (i.e., the age difference between siblings) on personality traits. We use longitudinal data from a large British cohort which has been followed from birth until age 42. Following earlier studies, we employ miscarriages between the first and second child as an instrument for birth spacing. The results show that a larger age gap between siblings negatively affects personality traits of the youngest child in two-child households. This result sheds a first light on the causal effects of birth spacing on personality traits.

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The effect of siblings on children's social skills and perspective taking

Samantha Sang & Jackie Nelson

Infant and Child Development, forthcoming

Abstract:
The current study examined associations between sibling characteristics (being an only child, having an older brother, younger brother, older sister, or younger sister) and two aspects of social competence, and how these processes may differ based on child gender. Participants included 112 children ages 5 to 7 with either one or no siblings. Results suggested that siblings' influence on social competence is complex. For perspective taking, sibling characteristics and child's gender did not have significant main effects. However, interactions between older brother and child gender and between younger brother and child gender showed that girls without a sibling had greater perspective taking than girls with brothers, whereas, boys with brothers seemed to benefit somewhat from their presence. Furthermore, increases in social skills over one year were observed among children with a younger sister compared to only children. Implications of siblings' influence on children's perspective taking and social skills are discussed.

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Effective Parenting and Self-Control: Difference by Gender

Nicole Shoenberger & Gregory Rocheleau

Women & Criminal Justice, forthcoming

Abstract:
Few studies have tested whether the process through which self-control is developed varies by gender. This study examines whether gender differences in self-control among children are explained by differences in parental supervision, monitoring, and discipline using a sample of mothers from National Longitudinal Study of Youth Children and Young Adults (NLSY79-CYA) data (N = 862). This study also examines whether the relationship between parenting factors and self-control is moderated by gender. Using ordinary least squares regression, findings showed that females report higher levels of self-control than males and that this difference is accounted for by parenting factors. Moreover, this study found that the effect of parental discipline for grades and spanking on self-control varied by gender.

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Multivariate Analysis of Genetic and Environmental Influences on Parenting in Adolescence

Megan Patterson et al.

Journal of Family Psychology, forthcoming

Abstract:
Adolescents whose parents are affectionate, maintain consistent rules, and are knowledgeable about their whereabouts tend to exhibit more adaptive levels of psychological functioning across multiple domains. Behavioral genetic research has documented the sensitivity of parenting to genetically influenced child characteristics and behaviors. Yet, the question of whether the correlations between parenting behaviors are driven by overlapping parent effects, overlapping child effects, or some combination of the two remains open. In a sample of N = 542 twins, ages 13.6 to 20.1 years, from the Texas Twin Project, we evaluated the extent to which adolescents’ genetically influenced traits broadly affect multiple dimensions of parenting (maternal and paternal warmth and control, and parental monitoring). We found that shared environmental factors primarily accounted for the covariation among parental warmth, control, and monitoring. Child-driven genetic effects were primarily detected in parenting variance unique to fathers. These results indicate that adolescents’ family-wide environmental contexts are general across multiple domains of parenting, whereas genetically influenced adolescent-driven effects are specific to particular aspects of parenting and to particular relationships.

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Imagining Her Future: Diversity in Mothers’ Socialization Goals for Their Adolescent Daughters

Jennifer Ramirez, Linda Oshin & Stephanie Milan

Journal of Cross-Cultural Psychology, forthcoming

Abstract:
According to developmental niche theory, members of different cultural and ethnic groups often have distinct ideas about what children need to become well-adapted adults. These beliefs are reflected in parents’ long-term socialization goals for their children. In this study, we test whether specific themes that have been deemed important in literature on diverse families in the United States (e.g., Strong Black Woman [SBW], marianismo, familismo) are evident in mothers’ long-term socialization goals. Participants included 192 mothers of teenage daughters from a low-income city in the United States (58% Latina, 22% African American, and 20% European American [EA]/White). Socialization goals were assessed through a q-sort task on important traits for a woman to possess and content analysis of open-ended responses about what values mothers hoped they would transmit to their daughters as they become adults. Results from ANCOVAs and logistic regression indicate significant racial/ethnic differences on both tasks consistent with hypotheses. On the q-sort task, African American mothers put more importance on women possessing traits such as independence than mothers from other racial/ethnic groups. Similarly, they were more likely to emphasize self-confidence and strength in what they hoped to transmit to their daughters. Contrary to expectation, Latina mothers did not emphasize social traits on the q-sort; however, in open-ended responses, they were more likely to focus on the importance of motherhood, one aspect of marianismo and familismo. Overall, results suggest that these mothers’ long-term socialization goals incorporate culturally relevant values considered important for African American and Latino families.

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Do Step- and Biological Grandparents Show Differences in Investment and Emotional Closeness With Their Grandchildren?

Peter Gray & Elizabeth Brogdon

Evolutionary Psychology, February 2017

Abstract:
Human children are raised by a variety of caregivers including grandparents. A few studies have assessed potential differences in direct caregiving, financial expenditures, and emotional closeness between biological and step-grandparents. Drawing upon kin selection theory, we hypothesized that step-grandparents would provide less care and be less emotionally close to grandchildren than would biological grandparents. A sample of 341 heterosexual U.S. adults 25–35 years of age in a long-term partnership and with a biological child 5 years of age or younger were recruited via Amazon Mechanical Turk. Subjects provided sociodemographic information and answered questions about the dynamics between their own parent/stepparent and their own youngest biological child (hence, biological/step-grandparenting dynamics). Main analyses were restricted to within-subject comparisons. Results showed that biological grandmothers provided more direct childcare, financial expenditures, and had more emotionally close relationships with grandchildren than did step-grandmothers. Biological grandfathers provided less direct care and had less emotionally close relationships than step-grandfathers but did not exhibit differences in financial expenditures. Biological grandmothers provided more direct care, financial investment, and were more emotionally close to the referential grandchild than were biological grandfathers. Step-grandfathers were more emotionally close and more often played with grandchildren than step-grandmothers. These findings partially support kin selection theory. We discuss the relevance of factors such as competing demands on grandmothers’ investment in biological and step-grandchildren and grandfathering serving in part as mating effort. Sex differences in biological grandparenting also mirror those in parenting. We suggest directions for future research, including on grandfathers, particularly in patrilineal societies.

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Plurality of Birth and Infant Mortality Due to External Causes in the United States, 2000–2010

Katherine Ahrens et al.

American Journal of Epidemiology, 1 March 2017, Pages 335-344

Abstract:
Risk of death during the first year of life due to external causes, such as unintentional injury and homicide, may be higher among twins and higher-order multiples than among singletons in the United States. We used national birth cohort linked birth–infant death data (2000–2010) to evaluate the risk of infant mortality due to external causes in multiples versus singletons in the United States. Risk of death from external causes during the study period was 3.6 per 10,000 live births in singletons and 5.1 per 10,000 live births in multiples. Using log-binomial regression, the corresponding unadjusted risk ratio was 1.40 (95% confidence interval (CI): 1.30, 1.50). After adjustment for maternal age, marital status, race/ethnicity, and education, the risk ratio was 1.68 (95% CI: 1.56, 1.81). Infant deaths due to external causes were most likely to occur between 2 and 7 months of age. Applying inverse probability weighting and assuming a hypothetical intervention where no infants were low birth weight, the adjusted controlled direct effect of plurality on infant mortality due to external causes was 1.64 (95% CI: 1.39, 1.97). Twins and higher-order multiples were at greater risk of infant mortality due to external causes, particularly between 2 and 7 months of age, and this risk appeared to be mediated largely by factors other than low-birth-weight status.


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