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It has been long recognized that cash plays a critical role in fueling street crime due to its liquidity and transactional anonymity. In poor neighborhoods where street offenses are concentrated, a significant source of circulating cash stems from public assistance or welfare payments. In the 1990s, the Federal government mandated individual states to convert the delivery of their welfare program benefits from paper checks to an Electronic Benefit Transfer (EBT) system, whereby recipients received and expended their funds through debit cards. In this paper, we investigate whether the reduction in the circulation of cash on the streets associated with EBT implementation had an effect on crime. To address this question, we exploit the variation in the timing of the EBT implementation across Missouri counties. Our results indicate that the EBT program had a negative and significant effect on the overall crime rate as well as burglary, assault, and larceny. According to our point estimates, the overall crime rate decreased by 9.8 percent in response to the EBT program. We also find a negative effect on arrests, especially those associated with non-drug offenses. Interestingly, the significant drop in crime in the United States over several decades has coincided with a period of steady decline in the proportion of financial transactions involving cash. In that sense, our findings serve as a fresh contribution to the important debate surrounding the factors underpinning the great American crime decline.

This paper examines whether nutritional disruptions experienced during the stage of fetal development impair an individual's labor market productivity later in life. We consider intrauterine exposure to the month of Ramadan as a natural experiment that might cause shocks to the inflow of nutrients essential for fetal development. Specifically, we use administrative data from Denmark to investigate the impact of exposure to Ramadan in utero on labor market outcomes of adult Muslim males, including employment status, annual salary, hourly wage rate, and hours of work. Our findings indicate that potential exposure to nutritional disruptions during a critical stage of fetal development has scarring effects on the fetus expressed as poor labor market outcomes later in life. Specifically, exposure to Ramadan in the 7th month of gestation results in a lower likelihood of employment, a lower salary, and reduced labor supply, but not necessarily a lower wage rate. We also document suggestive evidence that these results may partially be driven by increased disability and to a lesser extent by poor educational attainment among those who were exposed to Ramadan during this particular period in utero.

While previous studies have shown that recessions are associated with better health outcomes and behaviors, the focus of these studies has been on the relatively milder recessions of the late 20th century. In this paper, we examine if the previously established counter-cyclical pattern in health and heath behaviors is held during the Great Recession. Using data from the Behavioral Risk Factor Surveillance System (BRFSS) between 2005 and 2011 and focusing on a wide range of outcomes capturing health and health behaviors, we show that the association between economic deterioration and these outcomes has weakened considerably during the recent recession. In fact, majority of our estimates indicate that the relationship has practically become zero, though subtle differences exist among various sub-populations. Our results are consistent with the evidence emerging from several recent studies that suggests that the relationship between economic activity and health and health behaviors has become less noticeable in the recent years.

In this paper, we examine the effect of food prices on clinical measures of obesity, including body mass index (BMI) and percentage body fat (PBF) measures derived from bioelectrical impedance analysis (BIA) and dual energy x-ray absorptiometry (DXA), among youths ages 12 through 18. The empirical analyses employ data from various waves of the National Health and Nutrition Examination Survey (NHANES) merged with several food prices measured by county and year. This is the first study to consider clinically measured levels of body composition rather than BMI to investigate the effects of food prices on obesity among youths. We also examine whether the effects of food prices on body composition differ by gender and race/ethnicity. Our findings suggest that increases in the real price of one calorie in food for home consumption and the real price of fast-food restaurant food lead to improvements in obesity outcomes among youths. We also find that an increase in the real price of fruits and vegetables has negative consequences for these outcomes. Finally, our results indicate that measures of PBF derived from BIA and DXA are no less sensitive and in some cases more sensitive to the prices just mentioned than BMI.

One of the consequences of rapid economic growth and industrialization in the developing world has been deterioration in environmental conditions and air quality. While air pollution is a serious threat to health in most developing countries, environmental regulations are rare and the determination to address the problem is weak due to ongoing pressures to sustain robust economic growth. Under these constraints, natural gas, as a clean, abundant, and highly-efficient source of energy, has emerged as an increasingly attractive source of fuel, which could address some of the environmental and health challenges faced by these countries without undermining their economies. In this paper, we examine the impact of air pollution on infant mortality in Turkey using variation across provinces and over time in the adoption of natural gas as a cleaner fuel. Our results indicate that the expansion of natural gas infrastructure has caused a significant decrease in the rate of infant mortality in Turkey. In particular, a one-percentage point increase in the rate of subscriptions to natural gas services would cause the infant mortality rate to decline by 4 percent, which could result in 348 infant lives saved in 2011 alone. These results are robust to a large number of specifications. Finally, we use supplemental data on total particulate matter and sulfur dioxide to produce direct estimates of the effects of these pollutants on infant mortality using natural gas expansion as an instrument. Our elasticity estimates from the instrumental variable analysis are 1.25 for particulate matter and 0.63 for sulfur dioxide.

We examine the effects of fast-food restaurant advertising on television on the body composition of adolescents as measured by percentage body fat (PBF) and to assess the sensitivity of these effects to using conventional measures of youth obesity based on body-mass index (BMI). We merge measures of body composition from bioelectrical-impedance analysis (BIA) and dual-energy x-ray absorptiometry (DXA) from the National Health and Nutrition Examination Survey with individual level data from the National Longitudinal Survey of Youth 1997 and data on local fast-food restaurant advertising on television from Competitive Media Reporting. Exposure to fast-food restaurant advertising on television causes statistically significant increases in PBF in adolescents. These results are consistent with those obtained by using BMI-based measures of obesity. The responsiveness to fast-food advertising is greater for PBF than for BMI. Males are more responsive to advertising than females regardless of the measure. A complete advertising ban on fast-food restaurants on television would reduce BMI by 2 percent and PBF by 3 percent. The elimination of the tax deductibility of food advertising costs would still leave a considerable number of youth exposed to fast-food advertising on television but would still result in non-trivial reductions in obesity.

While the contemporaneous association between mental health problems and criminal behavior has been explored in the literature, the long-term consequences of such problems, depression in particular, have received much less attention. In this paper, we examine the effect of depression during adolescence on the probability of engaging in a number of criminal behaviors using data from the National Longitudinal Study of Adolescent Health (Add Health). In our analysis, we control for a rich set of individual, family, and neighborhood level factors to account for conditions that may be correlated with both childhood depression and adult criminality. One novelty in our approach is the estimation of school and sibling fixed effects models to account for unobserved heterogeneity at the neighborhood and family levels. Furthermore, we exploit the longitudinal nature of our data to account for baseline differences in criminal behavior. The empirical estimates show that adolescents who suffer from depression face a substantially increased probability of engaging in property crime. We find little evidence that adolescent depression predicts the likelihood of engaging in violent crime or the selling of illicit drugs. Our estimates imply that the lower-bound economic cost of property crime associated with adolescent depression is about 219 million dollars per year.

A complete account of the U.S. child care subsidy system requires an understanding of its implications for both parental and child well-being. Although the effects of child care subsidies on maternal employment and child development have been recently studied, many other dimensions of family well-being have received little attention. This paper attempts to fill this gap by examining the impact of child care subsidy receipt on maternal health and the quality of child-parent interactions. The empirical analyses use data from three nationally representative surveys, providing access to numerous measures of family well-being. In addition, we attempt to handle the possibility of non-random selection into subsidy receipt by using several identification strategies both within and across the surveys. Our results consistently indicate that child care subsidies are associated with worse maternal health and poorer interactions between parents and their children. In particular, subsidized mothers report lower levels of overall health and are more likely to show symptoms consistent with anxiety, depression, and parenting stress. Such mothers also reveal more psychological and physical aggression toward their children and are more likely to utilize spanking as a disciplinary tool. Together, these findings suggest that work-based public policies aimed at economically disadvantaged mothers may ultimately undermine family well-being.

The controversies surrounding Stand Your Ground laws have recently captured the nation's attention. Since 2005, eighteen states have passed laws extending the right to self-defense with no duty to retreat to any place a person has a legal right to be, and several additional states are debating the adoption of similar legislation. Despite the implications that these laws may have for public safety, there has been little empirical investigation of their impact on crime and victimization. In this paper, we use monthly data from the U.S. Vital Statistics to examine how Stand Your Ground laws affect homicides. We identify the impact of these laws by exploiting variation in the implementation of these laws across states. Our results indicate that Stand Your Ground laws are associated with a significant increase in the number of homicides among whites, especially white males. According to our estimates, between 4.4 and 7.4 additional white males are killed each month as a result of these laws. We find no evidence to suggest that these laws increase homicides among blacks. Our results are robust to a number of specifications and unlikely to be driven entirely by the killings of assailants. Taken together, our findings raise serious doubts against the argument that Stand Your Ground laws make America safer.

This paper examines the impact of the spatial accessibility of public human services agencies on the likelihood of receiving a child care subsidy among disadvantaged mothers with young children. In particular, we collect data on the location of virtually every human services agency in the U.S. and use this information to calculate the approximate distance that families must travel from home in order to reach the nearest office that administers the subsidy application process. Using data from the Kindergarten cohort of the Early Childhood Longitudinal Study (ECLS-K), our results indicate that an increase in the distance to a public human services agency reduces the likelihood that a family receives a child care subsidy. Specifically, we estimate an elasticity of subsidy receipt with respect to distance of -0.13. The final section of the paper provides an empirical application in which we use variation in families' travel distance to identify the causal effect of child care subsidies on children's weight outcomes. Our instrumental variables estimates suggest that subsidized child care leads to sizeable increases in the prevalence of overweight and obesity among low-income children.

While descriptive evidence suggests that deployment in the Global War on Terrorism is associated with adverse mental health, the causal effect of combat is not well established. Using data drawn from the National Longitudinal Study of Adolescent Health, we exploit exogenous variation in deployment assignment and find that soldiers deployed to combat zones where they engage in frequent enemy firefight or witness allied or civilian deaths are at substantially increased risk for suicidal ideation, psychological counseling, and post-traumatic stress disorder (PTSD). Our estimates imply lower-bound health care costs of $1.5 to $2.7 billion for combat-induced PTSD.

This paper analyzes the relationship between having one or more father figures and the likelihood that young people engage in delinquent criminal behavior. We pay particular attention to distinguishing the roles of residential and non-residential, biological fathers as well as stepfathers. Using data from the National Longitudinal Study of Adolescent Health, we find that adolescent boys engage in more delinquent behavior if there is no father figure in their lives. However, adolescent girls' behavior is largely independent of the presence (or absence) of their fathers. The strong effect of family structure is not explained by the lack of paternal involvement that generally comes with fathers' absence, even though adolescents, especially boys, who spend time doing things with their fathers usually have better outcomes. There is also a link between adult delinquent behavior and adolescent family structure that cannot be explained by fathers' involvement with their adolescent sons and is only partially explained by fathers' involvement with their adolescent daughters. Finally, the strong link between adolescent family structure and delinquent behavior is not accounted for by the income differentials associated with fathers' absence. Our results suggest that the presence of a father figure during adolescence is likely to have protective effects, particularly for males, in both adolescence and young adulthood.

In recent years, child care subsidies have become an integral part of federal and state efforts to move economically disadvantaged parents from welfare to work. Although previous empirical studies consistently show that these employment-related subsidies raise work levels among this group, little is known about the impact of subsidy receipt on child wellbeing. In this paper, we identify the causal effect of child care subsidies on child development by exploiting geographic variation in the distance that families must travel from home in order to reach the nearest social service agency that administers the subsidy application process. Using data from the Kindergarten cohort of the Early Childhood Longitudinal Study, our instrumental variables estimates suggest that children receiving subsidized care in the year before kindergarten score lower on tests of cognitive ability and reveal more behavior problems throughout kindergarten. However, these negative effects largely disappear by the time children reach the end of third grade. Our results point to an unintended consequence of a child care subsidy regime that conditions eligibility on parental employment and deemphasizes child care quality.

Child care subsidies play a critical role in facilitating the transition of disadvantaged mothers from welfare to work. However, little is known about the influence of these policies on children's health and well-being. In this paper, we study the impact of subsidy receipt on low-income children's weight outcomes in the fall and spring of kindergarten. The goals of our empirical analysis are twofold. We first utilize standard OLS and fixed effects methods to explore body mass index as well as measures of overweight and obesity. We then turn to quantile regression to address the possibility that subsidy receipt has heterogeneous effects on children's weight at different points in the BMI distribution. Results suggest that subsidy receipt is associated with increases in BMI and a greater likelihood of being overweight and obese. We also find substantial variation in subsidy effects across the BMI distribution. In particular, child care subsidies have no effect on BMI at the lower end of the distribution, inconsistent effects in the middle of the distribution, and large effects at the top of the distribution. Our results point to the use of non-parental child care, particularly centerbased services, as the key mechanism through which subsidies influence children's weight outcomes.

Bu çalışmada, Yahyalı (Kayseri) Bölgesinde bulunan Denizovası, Havadan, Aladağ, Çadırkaya, Göynük ve Tekneli yataklarının eser element jeokimyası özellikleri incelenmeye çalışılmıştır.Bölgede, Devoniyen-Alt Kretase zaman aralığında çökelmiş, genellikle karbonatlı kayaçlardan oluşan birimler, naplar halinde yüzeylemiş olup Yahyalı Napı, Siyah Aladağ Napı, Mineratepeler Napı, Çataloturan Napı, Beyaz Aladağ Napı, Aladağ Ofiyolitik Melanjı, Aladağ Kesilmekte ve Tersiyer yaşlı çökeller ile Alüvyonlardan tarafından örtülmektedirler.İncelenen cevherleşmeler, karbonatlı kayaçlar içinde genellikle tabaka düzlemleri ile uyumsuz kırık zonları boyunca oluşmuş, damar tipi oluşumlar şeklindedirler. Yer yer tabaka düzlemeleri ile uyumlu oluşumlar da gözlenmektedirler. Bu cevherleşmeler çoğu yerde yüzeysel koşullarda mobilize olarak kireçtaşları içindeki çözünme boşluklarında yeniden depolanmışlardır.Mikroskopik gözlemler ve XRD incelemeler, cevherleşmelerde cevher minerali olarak; galenit, sfalerit, pirit, kalkopirit, simitsonit, serusit, götit, gibi minerallerin bulunduğu, gang minerali olarak ta çoğunlukla kalsit, değişik oranlarda da dolomit ve kuvarsın bulunduğunu göstermiştir.Tüm cevher örneklerinde ve galenit örneklerinde yapılan eser element incelmeleri, tüm örneklerde analiz edilen eser elementlerin bolluklarının clark sayılarına göre oldukça yüksek olduğunu göstermektedir. Ayrıca analiz sonuçları EE-Pb, EE-Zn ve EE-Cu ikili diyagramlarında değerlendirilmiş olup yataklara ait değerlerin bu diyagramlar üzerinde farklı yerlerde gruplandıkları görülmüştür. Bu durum yatakların farklı kaynak veya oluşum koşullarına sahip oldukları şeklinde değerlendirilmiştir. This study deals with the trace element geochemistry of the Denizovası, Havadan, Aladağ, Çadırkaya, Göynük and Tekneli lead-zinc deposits located in the Yahyalı (KAYSERİ) Region.In the study area, Devonian-Lower Cretaceous carbonate dominated sedimentary rocks cropt out as nap units named as; Yahyalı, Siyah Aladağ, Minaretepeler, Çataloturan, Beyaz Aladağ, Aladağ Ophiolitic Melange and Aladağ Ophiolite naps. These tectonic and alloltoneus units are intruded by Tertiary granitoids and overlid by Tertiary sedimentary units and Quaternary alluviums.The investigated deposits are hosted by carbonate units and are generally occurred as discordant ore veins along the fault zones, however there are some occurrences developed paralel to the bedding surfaces. Nearly all of the deposits have been effected by the alteration and remobilization processes and were redeposited within the karstic caves developed in the hosting carbonate units.Microscopic and XRD studies showed the deposits contains galena, sphalerite, pyrite, cahalcopyrite, simitsonite, serusite and goettit as ore and mainly calcite, and various amonth of dolomite an quartz asgangue minerals.Trace element analyses indicate that the amonth of analysed trace elements in the raw ore samples and in the galena seperates are high comparing to their clark numbers. In addition, the plots of the analytical results on the EE-Pb, EE-Zn and EE-Cu diagrams show tahat the dispersion of the values of various deposits clustered in different places and indicate different source or formation condition for investigated deposits. 81

Child maltreatment is a major social problem. This study measures the effects of child maltreatment on crime using data from the National Longitudinal Study of Adolescent Health (Add Health). We focus on crime because it is one of the most costly potential outcomes of maltreatment. Our work addresses many limitations of the existing literature. First, we use a large national sample, and investigate different types of abuse in a similar framework. Second, we pay careful attention to controlling for possible confounding factors by comparing male twins and by controlling for differences in genetic endowments that have been linked to aggression and risk taking behaviors. We find that maltreatment greatly increases the probability of engaging in crime and that programs to reduce maltreatment would be cost-effective.

Child care subsidies are an important part of federal and state efforts to move welfare recipients into employment. One of the criticisms of the current subsidy system, however, is that it overemphasizes work and does little to encourage parents to purchase high-quality child care. Consequently, there are reasons to be concerned about the implications of child care subsidies for child development. In this paper, we provide a systematic assessment of the impact of subsidy receipt on a wide range of child outcomes. Drawing on rich data from the Early Childhood Longitudinal Study, we document a negative relationship between child care subsidies and child development. In particular, our results suggest that subsidy receipt in the year before kindergarten lowers reading and math test scores and increases a variety of behavior problems at kindergarten entry. Some of these negative effects persist to the end of kindergarten. A tentative explanation for the poorer outcomes is that subsidized children are more likely to receive intense exposure to low-quality child care.

A number of researchers point to the anticipation of early death, or a sense of futurelessness, as a contributing factor to youth crime and violence. Young people who perceive a high probability of early death, it is argued, may have little reason to delay gratification for the promise of future benefits, as the future itself is discounted. Consequently, these young people tend to pursue high-risk behaviors associated with immediate rewards, including crime and violence. Although existing studies lend empirical support to these arguments and show a statistical relationship between anticipated early death and youth crime, this support remains tentative. Moreover, a number of questions remain regarding the interpretation of this relationship, the meanings that offenders attach to the prospect of early death, and the causal mechanisms that link anticipated early death to youth crime. In this paper, we address the limitations of previous studies using a multi-methods approach, involving the analyses of national survey data and in-depth interviews with active street offenders.

Using data from three waves of Add Health we find that being very attractive reduces a young adult's (ages 18-26) propensity for criminal activity and being unattractive increases it for a number of crimes, ranging from burglary to selling drugs. A variety of tests demonstrate that this result is not because beauty is acting as a proxy for socio-economic status. Being very attractive is also positively associated adult vocabulary test scores, which suggests the possibility that beauty may have an impact on human capital formation. We demonstrate that, especially for females, holding constant current beauty, high school beauty (pre-labor market beauty) has a separate impact on crime, and that high school beauty is correlated with variables that gauge various aspects of high school experience, such as GPA, suspension or having being expelled from school, and problems with teachers. These results suggest two handicaps faced by unattractive individuals. First, a labor market penalty provides a direct incentive for unattractive individuals toward criminal activity. Second, the level of beauty in high school has an effect on criminal propensity 7-8 years later, which seems to be due to the impact of the level of beauty in high school on human capital formation, although this second avenue seems to be effective for females only.

Child maltreatment, which includes both child abuse and child neglect, is a major social problem. This paper focuses on measuring the effects of child maltreatment on crime using data from the National Longitudinal Study of Adolescent Health (Add Health). We focus on crime because it is one of the most socially costly potential outcomes of maltreatment, and because the proposed mechanisms linking maltreatment and crime are relatively well elucidated in the literature. Our work addresses many limitations of the existing literature on child maltreatment. First, we use a large national sample, and investigate different types of abuse in a similar framework. Second, we pay careful attention to identifying the causal impact of abuse, by using a variety of statistical methods that make differing assumptions. These methods include: Ordinary Least Squares (OLS), propensity score matching estimators, and twin fixed effects. Finally, we examine the extent to which the effects of maltreatment vary with socio-economic status (SES), gender, and the severity of the maltreatment. We find that maltreatment approximately doubles the probability of engaging in many types of crime. Low SES children are both more likely to be mistreated and suffer more damaging effects. Boys are at greater risk than girls, at least in terms of increased propensity to commit crime. Sexual abuse appears to have the largest negative effects, perhaps justifying the emphasis on this type of abuse in the literature. Finally, the probability of engaging in crime increases with the experience of multiple forms of maltreatment as well as the experience of Child Protective Services (CPS) investigation.

This paper provides a comprehensive analysis of the link between suicidal behaviors and labor market productivity of young adults in the United States. Using data from the National Survey of Adolescent Health (Add Health), we estimate the effects of suicide thoughts and suicide attempts on the work and schooling activities of young adults as well as on their hourly wage rates. The richness of the data set allows us to implement several strategies to control for unobserved heterogeneity and the potential reverse causality. These include using a large set of control variables that are likely to be correlated with both the suicidal behavior and the outcome measures, an instrumental variables method, and a twin fixed effects analysis from the subsample of twin pairs contained in the data. The longitudinal nature of the data set also allows us to control for past suicide thoughts and attempts of the individuals from their high school years as well as the suicide behaviors of the members of their family. Results from the different identification strategies consistently indicate that both suicide thoughts and suicide attempts decrease the hourly wage rate and the probability that a young adult individual works and/or attends school. The results are found to be robust to various specification tests.

Using a data set from the post welfare reform environment (the 1999 National Survey of America?s Families), this paper investigates the impact of child care subsidies on the standard work (i.e., work performed during the traditional work hours of 8 a.m. and 6 p.m. through Monday and Friday) decision of single mothers and tests whether this impact differs between welfare recipients and nonrecipients. The econometric strategy accounts for sample selection into the labor force and the potential endogeneity of child care subsidy receipt and welfare participation. Results suggest that child care subsidies are associated with a 6 percentage point increase in the probability of single mothers working at standard jobs. When the impact of subsidies is allowed to differ between welfare recipients and non-recipients, results indicate that welfare recipients are 14 percentage points more likely to work at standard jobs than others when they are offered a child care subsidy. Among non-recipients, child care subsidies increase standard work probability by only 1 percentage point. These results underscore the importance of child care subsidies helping low-income parents, especially welfare recipients, find jobs with conventional or standard schedules and lend support to the current practice of states? giving priority to welfare recipients for child care subsidies. Results are found to be robust to numerous specification checks.

This paper examines the impact of actual subsidy receipt of single mothers on their joint employment and child care mode decisions in the post-welfare reform environment, which places a high priority on parental choice with the quality and type of care chosen. Results indicate that single mothers are highly responsive to child care subsidies by increasing their employment while moving from parental and relative care to center care in the process.

Although there is a sizeable literature of the effect of private school attendance on academic student outcomes, there is a dearth of studies of the impact of school sector on nonacademic outcomes. Using a rich data set, we analyze the impact of Catholic school attendance on the likelihood that teens use or sell drugs, commit property crime, have sex, join gangs, attempt suicide, and run away from home. Controlling for a host of personal and family background characteristics and adjusting for the endogeneity of sector choice, we cannot find evidence that Catholic schooling leads to a lower incidence of these risky behaviors among teenagers.

This paper provides a comprehensive analysis of employment and child care payment decisions of single mothers in the early post-welfare reform environment, using data from the National Survey of America?s Families (NSAF). I develop and estimate a model that examines the effects of the price of child care and the wage rate on employment decision as well as the decision to use paid child care among single mothers. The model distinguishes between the full-time and part-time employment decisions as well as the prevailing wages in these two employment markets. A semi-parametric random effects estimator and the Gaussian Quadrature are used together to estimate the system of equations for the discrete outcomes of full-time and part-time employment, and child care payment, and the linear equations of the price of child care, and part-time and full-time wages in a unified framework. The econometric model also controls for the endogeneity of child care subsidy receipt and adjusts the hourly price of child care for the amount of subsidy for mothers who receive one. The results show that full-time working mothers are more sensitive to the price of child care than part-time working mothers. A lower price of child care leads to increases in overall employment and the use of paid child care. However, much of the increase in employment is in the form of full-time employment. An increase in the full-time wage rate leads to increases in overall employment and the use of paid child care. The effects of full-time wage rate are estimated to be much larger than those of the price of child care. Part-time wage effects are found to be so small to have significant implications.

This paper examines the effects of alcohol consumption on employment and wages for males and females in Russia. Both cross sectional and fixed-effects models are estimated utilizing data from the Russia Longitudinal Monitoring Survey. The results from the models that do not control for unobserved heterogeneity indicate that alcohol consumption has a positive impact on employment and wages. Further, there is some evidence in favor of an inverse U-shaped relationship between alcohol consumption and the labor market outcomes. Once the unobserved heterogeneity is controlled for using fixed effects, the positive association diminishes for the employment models for males and females. For the wage models, controlling for unobserved heterogeneity strengthens the positive impact of alcohol consumption both in significance and magnitude for males, while the reverse is true for females. However, the inverse U-shaped relationship obtained in cross-sectional models no longer exists. The results underline that unobserved heterogeneity plays an important role on the relationship between alcohol consumption and labor market behavior for both males and females. The findings are robust to model specifications and various alcohol consumption measures.

This paper provides an early analysis of child care subsidies under welfare reform. Previous studies of child care subsidies use data from the pre-welfare-reform period, and their results may not apply to the very different post-reform environment. We use data from the 1997 National Survey of America?s Families to analyze the determinants of receipt of a child care subsidy and the effects of subsidy receipt on employment, school attendance, job search, and welfare participation. We analyze the impact on subsidy receipt of household characteristics such as family size and structure, and past participation in welfare. Ordinary least squares estimates show positive and significant effects of subsidy receipt on employment, school enrollment, and welfare participation. Two stage least squares estimates that treat subsidy receipt as endogenous and use county dummies as identifying instruments show much less evidence that subsidy receipt affects these outcomes.

This paper uses a rich employer-employee matched data set to investigate the existence and the extent of nonprofit and part-time wage and compensation differentials in child care. The empirical strategy adjusts for workers? self-selection into the for-profit or nonprofit sectors, into full-time or part-time work, as well as for unobserved worker heterogeneity using a discrete factor model. We find differences between the regimes (full-time for-profit, full-time nonprofit, part-time for-profit, part-time nonprofit) in the manner in which human capital characteristics of the workers are rewarded. There is substantial variation in wages as a function of employee characteristics, and there is variation in wages within sectors. The results indicate that part-time jobs are ?good? jobs in center-based child care, and there exist nonprofit wage and compensation premiums, which support the property rights hypothesis.