Charles L. Baum

Does Early Maternal Employment Harm Child Development? An Analysis of the Potential Benefits of Leave Taking

More mothers engage in marketplace work today than ever before, with over 33% returning to work by the time their child is 3 months old. This article identifies the effects of maternal marketplace work in the initial months of an infant’s life on the childs cognitive development. Results suggest that such work in the first year of a child’s life has detrimental effects. Where significant, the results also indicate negative effects of maternal employment in the child’s first quarter of life. However, the negative effects of maternal marketplace work are partially offset by positive effects of increased family income.More mothers engage in marketplace work today than ever before, with over 33% returning to work by the time their child is 3 months old. This article identifies the effects of maternal marketplace work in the initial months of an infant’s life on the childs cognitive development. Results suggest that such work in the first year of a child’s life has detrimental effects. Where significant, the results also indicate negative effects of maternal employment in the child’s first quarter of life. However, the negative effects of maternal marketplace work are partially offset by positive effects of increased family income.

The effect of state maternity leave legislation and the 1993 Family and Medical Leave Act on employment and wages

Abstract In 1993, President Clinton signed the Family and Medical Leave Act (FMLA). Similar to the 12 states that already had maternity leave mandates, the FMLA guarantees 12 weeks of unpaid leave for eligible mothers. I evaluate the effects of maternity leave legislation on employment and wages, taking advantage of variation created by state legislation and the FMLA. My results show that maternity leave legislation has small and statistically insignificant effects on employment and wages. Maternity leave legislation may have little effect because the mandated leave is short and unpaid and many employers provided maternity leave benefits prior to the statutes.

A Dynamic Analysis of the Effect of Child Care Costs on the Work Decisions of Low-Income Mothers with Infants

Child care costs reduce the net benefit of working and consequently influence mothers’ decisions to work. They affect the employment of low-income mothers in particular because they represent a larger portion of these mothers’ earnings. I used a hazard framework to examine a mother’s decisions about work and hours of work after childbirth. I focused on low-income mothers with infants because they are the ones who may be most affected by child care costs. The results showed that child care costs are a barrier to work that is larger for low-income mothers than for non-low-income mothers. Further, child care costs have large negative effects on hours of work.

The effects of cigarette costs on BMI and obesity

About 30% of Americans are currently obese, which is roughly a 100% increase from 25 years ago. Public health officials have consequently become alarmed because recent research indicates that societal costs of obesity now exceed those of cigarette smoking and alcoholism. Cigarette taxes may have exacerbated the prevalence of obesity. In 1964, the US Surgeon General issued its first report relating smoking and health, and since that time, federal and state governments have increased cigarette taxes in a successful effort to reduce cigarette smoking. However, because cigarette smoking and obesity seem inversely related, cigarette taxes may have simultaneously increased obesity. This paper examines the effects of cigarette costs on BMI and obesity and finds that they have significant positive effects. This paper attempts to reconcile conflicting evidence in the literature by controlling more carefully for correlation with state-specific time trends using panel data. Results indicate that the net benefit to society of increasing cigarette taxes may not be as large as previously thought, though this research in no way concludes that they should be decreased to prompt weight loss.

The Efffect of Work Interruptions on Women’s Wages

This paper examines the effects of work interruptions on womens wages, focusing particularly on work interruptions to give birth. It also accounts for whether mothers return to work at their pre-childbirth jobs after giving birth. The results show that work interruptions in general and work interruptions specifically to give birth reduce wages. However, the negative effects of work interruptions to give birth are at least partially eliminated when controlling for whether mothers return to work for their pre-childbirth employers. Also, these effects are temporary and do not persist beyond the second year after returning to work.

Weighing the Evidence of Common Beliefs in Obesity Research

Obesity is a topic on which many views are strongly held in the absence of scientific evidence to support those views, and some views are strongly held despite evidence to contradict those views. We refer to the former as “presumptions” and the latter as “myths.” Here, we present nine myths and 10 presumptions surrounding the effects of rapid weight loss; setting realistic goals in weight loss therapy; stage of change or readiness to lose weight; physical education classes; breastfeeding; daily self-weighing; genetic contribution to obesity; the “Freshman 15”; food deserts; regularly eating (versus skipping) breakfast; eating close to bedtime; eating more fruits and vegetables; weight cycling (i.e., yo-yo dieting); snacking; built environment; reducing screen time in childhood obesity; portion size; participation in family mealtime; and drinking water as a means of weight loss. For each of these, we describe the belief and present evidence that the belief is widely held or stated, reasons to support the conjecture that the belief might be true, evidence to directly support or refute the belief, and findings from randomized controlled trials, if available. We conclude with a discussion of the implications of these determinations, conjecture on why so many myths and presumptions exist, and suggestions for limiting the spread of these and other unsubstantiated beliefs about the obesity domain.

The Effects of Maternity Leave Legislation on Mothers' Labor Supply after Childbirth

In the late 1980s and early 1990s, 12 states and the District of Columbia passed maternity leave legislation (MLL) allowing mothers a period of leave from work after childbirth. In 1993, President Clinton signed the first piece of federal MLL, the Family and Medical Leave Act (FMLA). Similar to state legislation, the FMLA guarantees 12 weeks of unpaid leave for eligible mothers. I evaluate the effect of MLL on the incidence of leave taking, the probability that mothers will eventually return to work at their prechildbirth jobs, and the timing of their return. The results indicate that the legislation increases the number of mothers who eventually return to their prechildbirth jobs but that MLL does not have a statistically significant effect on the incidence of leave taking. The results also indicate that MLL allows mothers to delay their return to work at their prechildbirth jobs.

The Long-Term Effects of Early and Recent Maternal Employment on a Child’s Academic Achievement

More children today are being raised in households with mothers who work for pay compared to a generation ago, when most mothers did not engage in marketplace work. This demographic change is important because it could affect children. In this article, the effects of early and recent maternal employment on a child’s academic development are identified as measured by high school grades. Results suggest that whereas early maternal employment does not have an effect, recent maternal employment (during a child’s adolescent years) significantly decreases grades. Results also show that the effects of maternal employment do not differ for boys and girls.

The Effects of Government-Mandated Family Leave on Employer Family Leave Policies

The 1993 Family and Medical Leave Act (FMLA) guarantees employees 12 weeks of unpaid leave to address family issues. Twelve states and the District of Columbia passed similar legislation antedating the FMLA. However, studies in the economics literature find either small or insignificant effects of the legislation on employment, leave-taking, work, and wages. Perhaps employees are unable to use the mandated leave because it is unpaid and/or they do not need family leave because they already have the option of taking off work via vacation, sick leave, and disability leave policies. If so, then family leave legislation may have increased employer-provided family leave without corresponding effects on employment-related outcomes. This paper examines family leave legislation’s effects on employers’ family leave policies, finding significant positive effects.

The effects of welfare vehicle asset rules on vehicle assets

Before 1996, households were typically ineligible for welfare if they had assets worth more than