The role of new media on teen sexual behaviors and fertility outcomes—the case of 16 and Pregnant

This article investigates the 2009 premiere of 16 and Pregnant as a shock to teen information sets and potential influence on sexual activity and fertility. The program, chronicling teen pregnancy and providing educational links on sex/contraception, began a continuing stream of teen pregnancy reality shows. My conceptual framework considers how such programs alter the expected (dis)utility or perceived risk of becoming pregnant. I test for differential effects across ages, state‐sex education requirements, and viewership levels in a quasi‐difference‐in‐difference framework that controls for confounding effects of coincident contraception policy changes, the economy, and downward trends in teen fertility. The results indicate that while fertility declined across all adolescents in the postperiod, there are stronger effects among young teens in states without sex education mandates and higher viewership. Supporting evidence from the National Survey of Family Growth shows increased hormonal contraception use in the postperiod for young relative to older teens.     

High School Dropouts and Sexually Transmitted Infections

People who drop out of high school fare worse in many aspects of life. We analyze the relationship between dropping out of high school and the probability of contracting a sexually transmitted infection (STI). Previous studies on the relationship between dropout status and sexual outcomes have not empirically addressed unobserved heterogeneity at the individual level. Using fixed effects estimators, we find evidence supporting a positive relationship between dropping out of high school and the risk of contracting an STI for females. Furthermore, we present evidence that illustrates differences between the romantic partners of dropouts versus enrolled students. These differences suggest that female dropouts may be more susceptible to contracting STIs because they partner with significantly different types of people than do nondropouts. Our results point to a previously undocumented benefit of encouraging those at risk of dropping out to stay in school longer.     

Prenatal Smoking Cessation and Infant Health: Evidence from Sibling Births

This article uses a large data set of sibling births to examine when mothers must quit smoking in pregnancy to deliver healthy babies. It applies sibling fixed effects models to provide robust evidence that smoking cessation in the first trimester has a negligible effect on infant health, but cessation as late as second trimester or smoking throughout pregnancy is associated with substantially lower birth weights and higher risks of delivering low birth weight babies. In particular, about two thirds of the total detrimental smoking impact on birth outcomes occurs in the second trimester. Therefore, reallocating resources on prenatal smoking cessation towards the first trimester can lead to a significant efficiency gain. This study also shows when the timing information of prenatal smoking cessation is improperly used, it will introduce a new nontrivial downward bias in estimating the causality between the conventionally used group measure “prenatal smoker” and infant health.     

LINKING POVERTY AND INCOME SHOCKS TO RISKY SEXUAL BEHAVIOUR: EVIDENCE FROM A PANEL STUDY OF YOUNG ADULTS IN CAPE TOWN

Is there a link between household income and income stress, and risky sexual behaviour of young people? Anecdotal and qualitative evidence suggests this may be the case, but there is little quantitative research measuring this relationship. We use two waves of new data from the Cape Area Panel Study to investigate this link for 2,993 African and coloured youths aged 14 to 22 in 2002. In the process, we discuss one type of research design that could allow for a causal interpretation of the effect of income poverty on HIV risk. This design plausibly separates out the effect of income stress from the effect of living in a poor household by comparing behaviours across households with and without negative economic shocks, conditional on baseline income. Our results indicate that females in poorer households are more likely to be sexually active in 2002 and more likely to sexually debut by 2005. In addition, girls in households experiencing negative economic shocks are more likely to reduce condom use between 2002 and 2005. However, they are less likely to have multiple partners in 2002 or have transitioned to multiple partners by 2005. Males who experienced a negative shock are more likely to have multiple partners. Despite the tight research design for assessing shocks, the findings on the impacts of shocks do not generate clear recommendations for policy. There appears to be no systematic difference in condom use at last sex by household income levels or income shocks.     

The Role of Economic Shocks on Health: Evidence from German Reunification

Sudden economic shocks impact the everyday lives of people from one day to the next. A number of studies have examined the association between economic fluctuations and health; however, no consensus on the nature of this relationship has been established. By exploiting the dramatic economic fluctuations following the German Reunification of 1990, which included a sudden change from a socialist to a capitalist system in East Germany, this study examines the association between broad negative economic shocks and health. The article finds that increases in state unemployment rates are associated with large and statistically significant declines in health outcomes. Estimates are stronger for people who became unemployed shortly after reunification, for low‐income individuals, and for East Germans, a group confronted with larger economic fluctuations. When examining potential mechanisms that could explain the observed health deteriorations, the study finds significant reductions in exercise frequency and increases in economic uncertainty and overall stress.     

SOCIAL NETWORKS AND ETHNIC NICHES: AN ECONOMETRIC ANALYSIS OF THE MANUFACTURING SECTOR IN SOUTH AFRICA

This paper analyses the link between social networks and ethnic occupational niches in the manufacturing sector in South Africa. To this end, it employs the methodology of Bertrand et al. to minimise the omitted variable bias induced by standard approaches investigating network effects and adopts Model's concentration index to define an ethnic niche. The results indicate that 25% of the sample is employed in ethnic niches in the manufacturing sector, but that niche employment varies markedly by language group. In addition, certain language groups tend to be clustered in advantageous niches where monthly income and skill levels are relatively high, while others occupy disadvantageous niches where monthly income and skill levels are relatively low. A number of different econometric specifications find strong evidence of social network effects. This highlights the role that these networks play in forming ethnic niches in the manufacturing sector in South Africa.     

Childbearing Age,Family Allowances,and Social Security

Although the optimal public policy under an endogenous number of children has been widely studied, the optimal public intervention under an endogenous timing of births has remained largely unexplored. This paper examines the optimal family policy when the timing of births is chosen by individuals who differ as to how early fertility weakens future earnings. We analyze the design of a policy of family allowances and of public pensions in such a setting, under distinct informational environments. Endogenous childbearing ages is shown to affect the optimal policy through the redistribution across the earnings dimension and the internalization of fertility externalities. Contrary to common practice, children benefits differentiated according to the age of parents can be part of the optimal family policy. Our results are robust to introducing: (i) children as durable “goods”; (ii) education choices; (iii) varying total fertility.     

Is Leaving Home a Hardship?

The transition of young adults from their parents' homes to other living arrangements is a major life‐course milestone. Although the causes of nest‐leaving have been extensively researched, only a few studies have examined changes in young adults' well‐being that immediately precede and follow these transitions. This study uses the Household, Income, and Labour Dynamics in Australia survey to document trajectories of financial hardships, nutrition, and other outcomes among Australians who left their parents' homes between the ages of 18 and 25 years. The study estimates multivariate fixed‐effects models that compare outcomes before and after nest‐leaving transitions to mitigate the effects of confounding characteristics. Men and women report increased financial hardships in the years that they leave home and in the first few years that follow, including going without meals and needing to ask friends and family for financial help. Women additionally report missing utility and housing payments.     

Education and family health care spending

Michael Grossman's seminal work on the demand for health extended the concept of a household production function to the commodity “good health.” In this framework, education represents an “environmental variable” that enhances the monetary returns to investments in health through the use of time and medical care in health production. Using data from the 2004 to 2012 Medical Expenditure Panel Survey (MEPS), we examine the association between parental education and family health care spending in single-mother and two-parent families. We estimate one- and two-part expenditure models for total family health care spending, for specific components of such spending, and also examine the impact of parental education on selected measures of family health. Controlling for family income and health insurance status, we find consistent evidence that parental education beyond 12 years of schooling is associated with increases in family health care spending and with reductions in the likelihood of adverse health conditions.     

Early Effects of the Affordable Care Act on Health Care Access,Risky Health Behaviors,and Self-Assessed Health

The goal of the Affordable Care Act (ACA) was to achieve nearly universal health insurance coverage through a combination of mandates, subsidies, marketplaces, and Medicaid expansions, most of which took effect in 2014. We use data from the Behavioral Risk Factor Surveillance System to examine the impacts of the ACA on health care access, risky health behaviors, and self-assessed health after two years. We estimate difference-in-difference-in-differences models that exploit variation in treatment intensity from state participation in the Medicaid expansion and pre-ACA uninsured rates. Results suggest that the ACA led to sizeable improvements in access to health care in both Medicaid expansion and nonexpansion states, with the gains being larger in expansion states along some dimensions. However, we do not find clear effects on risky behaviors or self-assessed health.     

Did the Great Recession Affect Fertility? Examining the Impact of Job Displacements on the Timing of Births in the United States

We examine the impact of job losses during the Great Recession on fertility in the United States. We find that for married/cohabiting couples, job losses of males during the recession decreased the likelihood of birth. In contrast, job losses of married/cohabiting females had no impact, on average, on fertility because of opposing age-specific effects. Although younger women were reducing fertility after job losses to cope with the loss of income, older women, aged 40 and above, were more likely to have a child following their job loss. Moreover, we find that job losses of single/noncohabiting females decreased the likelihood of birth, particularly for women below the age of 25. This negative effect on fertility persisted in the medium-term, up to three years following the job losses. Overall, these results suggest that job losses during the recession may be partly responsible for the recent decline in the U.S. birth rates.     

Adolescent Depression and Adult Labor Market Outcomes

This article uses recently released data from a national longitudinal sample to present new evidence of the longer term effects of adolescent depression on labor market outcomes. Results suggest reductions in labor force attachment of approximately 5% and earnings reductions of approximately 15% for individuals with depressive symptoms as an adolescent. These effects are only partially reduced when controlling for channels operating through educational attainment, adult depressive symptoms, or co‐occurring illnesses. Further, the unique structure of the data allows for high‐school fixed effects as well as suggestive evidence using sibling comparisons, which allows controls for potentially important unobserved heterogeneity. Overall, the results suggest that the links between adolescent depression and labor market outcomes are quite robust and important in magnitude, suggesting the need for further investments in treatment options and opportunities during adolescence, which will likely result in long term returns.     

Health insurance generosity and conditional coverage: Evidence from medicaid managed care in Kentucky

This article estimates the impact of the introduction of Medicaid managed care (MMC) on the formal Medicaid participation of children. We employ a quasi‐experimental approach exploiting the location‐specific timing of MMC implementation in Kentucky. Using data from the March Current Population Survey from 1995 to 2003, our findings suggest that the introduction of MMC increases the likelihood of being uninsured and decreases formal Medicaid participation. This finding is consistent with an increase in “conditional coverage,” waiting until medical care is needed to sign up or re‐enroll in Medicaid. These effects are concentrated among low‐income children and absent for high‐income children. We find no evidence of “crowd‐in,” substituting private coverage for Medicaid. These results are robust to multiple placebo tests and imply the potential for less formal participation (i.e., more conditional coverage) among the Affordable Care Act‐Medicaid expansion population (which is likely to be primarily covered under MMC) than is typically predicted.     

Higher Wages,Less Gym Time? The Effects of Minimum Wages on Time Use

This study examines the effects of minimum wages on time use. Analyzing data from the American Time Use Survey from 2003 to 2017, I investigate the role of time allocated toward exercise and other health‐enhancing activities as a potential mechanism underlying the link between minimum wages and health. The study finds that a $1 increase in minimum wages is associated with reductions in exercising and total personal health time by 13 and 20 minutes during the week, respectively. This decline in health time is fully reallocated toward additional leisure time. The results are largely driven by males and employed individuals.     

Is the Best Interest of the Child Best for Children? Educational Attainment and Child Custody Assignment

Between the 1970s and 1990s, state custody laws moved from maternal preference to the “best interests of the child” doctrine, which gives fathers and mothers equal treatment in child custody assignment. We exploit exogenous variation across states in the timing of this custody law change to estimate the long-term implications of exposure to a gender-neutral custody law regime. We find that childhood exposure to gender neutral custody laws has a negative effect on educational attainment. A child exposed to gender neutral custody law is less likely to graduate from high school by 1.5 to 2.0 percentage points.     

Good Girl,Bad Boy? Evidence Consistent with Collusion in Professional Tennis

We identify professional tennis matches where one player competes for extraordinarily high payoffs while their opposition does not. Players “on the bubble” of direct qualification to upcoming Grand Slam events face substantially higher stakes than opponents, which presents an opportunity for collusion. Our findings produce evidence that is consistent with the hypothesis of unethical behavior taking place on the men's tour, as bubble players are 5.1 percentage points more likely to beat better ranked opponents than in comparable nonbubble matches. However, no such evidence emerges when analyzing women's tennis. We find additional support for the hypothesis of match‐fixing activities on the men's tour from analyzing the occurrence of tie‐breaks and the fact that our results become stronger once monetary incentives were increased after the 2013 season. Finally, the betting market does not predict this phenomenon, further confirming our suspicion of irregular activities.     

Timing is Everything: The Impact of School Lunch Length on Children's Body Weight

The large number of overweight children in the United States has prompted school administrators and policy makers to identify practices in schools that contribute to unhealthy weight outcomes for children and develop strategies to prevent further increases. Advocates for school nutrition reform have suggested that it is important for children to have an adequate amount of time to eat meals in school in order to maintain a healthy weight. This article examines whether the length of time children are given to eat lunch in school has an impact on their weight. I find evidence that an increase in lunch length reduces the probability a child is overweight, and this finding is robust across various econometric specifications, including a two‐sample instrumental variable model and difference‐in‐differences model that account for the potential endogeneity of lunch length.     

Identifying the causal effect of alcohol abuse on the perpetration of intimate partner violence by men using a natural experiment

Intimate partner violence (IPV) is widespread and has substantial negative consequences. Researchers have documented a strong positive correlation between alcohol abuse and IPV. However, alcohol abuse is potentially endogenous to IPV. We deal with this problem by exploring a unique instrumental variable—the September 11 terrorist attack—in Wave III of the National Longitudinal Study of Adolescent Health. Ordinary least squares results confirm a strong positive correlation between alcohol abuse and IPV. However, our two‐stage least squares results are statistically insignificant. These results indicate that alcohol abuse might not have a causal effect on IPV and, therefore, have important policy implications.