The Effect of Household Socioeconomic Status on the Demand for Child Health Care Services

The health of the child is an important factor for proper childhood development. Unfortunately, efforts to improve child health in many countries have not yielded the desired results as many children do not receive appropriate health care, hence contributing to high child mortality and morbidity from avoidable causes. To address this problem, it is important that we understand the factors that drive the demand for child health care services. This study, employing the binary and multinomial logistic regression models, examines the effect of household socioeconomic status on the demand for child health care in Ghana, Kenya and Zambia using data from the 2014 Demographic and Health Surveys. The results indicate that the likelihood of seeking appropriate health care for the child is higher when both parents make decisions. The findings further indicate that the odds of seeking treatment for the child falls with the birth order and age of the child, but increases with household wealth, insurance status and proximity to the health facility. Working women are more likely to demand child health care than their counterparts who are unemployed. Our results, therefore, suggest that improving child health will need the participation of both parents in the household on such decisions. Besides, there is the need to educate parents on the importance of seeking appropriate care for all the children born irrespective of the birth order and age of the child. There should also be deliberate efforts to improve the economic lot of households to enhance their purchasing power and encourage them to participate in health insurance schemes to enable effective utilization of health care services for the child in the efforts to improve child health.     

Parental Education and child Nutrition in Indonesia

This study uses 1989 Susenas household data to examine the impact of parental education on pre-school children's nutritional status, as measured by weight-for-age Z-scores. Reduced form regressions are estimated separately for boys and girls in rural and urban areas; explanatory variables include mother's and household head's education; per capita household expenditure; and aspects of the household sanitary environment. The analysis controls for influence of unobserved heterogeneity at village level, e.g. differences in prices and medical service provision. The estimates show a significant effect of parental schooling on child health status, varying between urban and rural areas, and by child gender and age. Mothers with secondary education typically have healthier boys than those with less schooling, while this effect is seen for girls only if the mother has more than secondary education. Maternal schooling significantly affects 2–5 year olds' health, but has little direct effect on that of younger children.     

Does birth spacing affect female labor market participation? Evidence from urban China

This paper investigates the impact of birth spacing on female labor market participation in urban China. Employing household panel surveys between 1989 and 2011 and exploiting variations in time intervals between the first and second child, we find that spacing births at longer intervals significantly increases female labor market participation. The effects of birth spacing are robust to various examinations that consider nonlinear specifications, selection on observed and unobserved variables, and the plausibly exogenous instrument. The heterogeneous analysis suggests that the effects of birth spacing are more pronounced in women with a daughter as the first birth, women with late first birth, and less-educated women. We examine potential mechanisms and document that women with longer birth intervals are likely to invest more in continuing education and have better health status.     

Socioeconomic status in childhood and health after age 70: A new longitudinal analysis for the U.S., 1895–2005

The link between circumstances faced by individuals early in life (including those encountered in utero) and later life outcomes has been of increasing interest since the work of Barker in the 1970s on birth weight and adult disease. We provide such a life course perspective for the U.S. by following 45,000 individuals from the household where they resided before age 5 until their death and analyzing the link between the characteristics of their childhood environment – particularly, its socioeconomic status – and their longevity and specific cause of death. White U.S.-born males living before age 5 in lower SES households (measured by father's occupation and family home ownership) who survive to age 70 die younger and are more likely to die from heart disease than those living before age 5 in higher SES households. The pathways potentially generating these effects are discussed.     

When left-behind children become adults and parents: The long-term human capital consequences of parental absence in China

This study examines the long-term effects of childhood left-behind experience on human capital outcomes across two generations in China. Using data from the China Family Panel Studies (CFPS), we find evidence that adults with left-behind experience in early life have fewer schooling years, lower cognitive test scores, a lower Big Five personality traits index, but a higher internal locus of control. Meanwhile, they are more likely to report underweight, chronic diseases, depression, and lower levels of perceived health and happiness. Our findings of the negative consequences on personality traits and health outcomes are robust to a battery of specification and validity tests. These effects also differ markedly by adults' gender, birth cohort, hukou status, and the characteristics of left-behind experience (i.e., type, timing, and duration). Further, our results also suggest a potential intergenerational transmission mechanism in which human capital loss is induced by one's early-life exposure to parental absence. Specifically, one's childhood left-behind experience is also inversely associated with their offspring's outcomes such as Big Five noncognitive skills, birth weight, and height-for-age z-score. Although adults with left-behind experience are inclined to spend more time with offspring compared with their non-left-behind counterparts, they also tend to have significantly poorer household socioeconomic outcomes and less offspring educational investment.     

Childhood health and future outcomes: Evidence from panel surveys for the Japanese population

Numerous studies in developed and developing countries around the world have found that childhood health is associated with future health and socioeconomic status. This paper uses nationally representative panel surveys to examine the impact of poor childhood health on the future socioeconomic outcomes of the Japanese population. I find that poor childhood health adversely affects various future health conditions for the middle and long run, and that the effects on subjective and physical health are amplified with age. In addition, poor childhood health negatively affects promotion opportunities in the mid-term and labor participation over the long-term. Moreover, I find that low parental income directly and negatively affects subjective and psychological health. The empirical results imply that public policy for continuous good health in childhood improves future socioeconomic outcomes.     

The Effect of Body Weight on Adolescent Academic Performance

A recent study by Cawley found consistent evidence of a negative relationship between body weight and wages for white women, even after controlling for fixed individual-level unobserved heterogeneity and reverse causality. Building on this work, I estimate the relationship between adolescent body weight and academic achievement to examine whether early human capital accumulation is adversely affected by obesity. Using data from the National Longitudinal Study of Adolescent Health, I estimate ordinary least squares, instrumental variables, and individual fixed effects models. The pattern of findings across models suggests consistent evidence of a significant negative relationship between body mass index and grade point average (GPA) for white females aged 14-17. Estimates reflect that a difference in weight of 50 to 60 pounds (approximately two standard deviations) is associated with an 8 to 10 percentile difference in standing in the GPA distribution. For nonwhite females and males, there is less convincing evidence of a causal link between body weight and academic performance after controlling for unobserved heterogeneity.     

Income Inequality and Health: Do the Equivalence Scales Matter?

The aim of this paper is to explore the relationship between income inequality and health in the European Union countries using new data from the European Community Household Panel (ECHP). The heterogeneity of the households has been approached using different equivalence scales. A variety of different model specifications were tried using different dependent variables such as life expectancy at birth and child mortality. The results give support to the influence of income inequality on health indicators using aggregate data and panel techniques, and show the sensitivity of the Gini index to the equivalence scale considered.     

Smoking and wage rates – Evidence from Japanese panel data

This paper analyzes smoking behavior and its effects on wage rate. It is widely known that smoking has negative health effects and to discourage the practice, governments frequently implement policies such as tax increases and restrictions on public smoking. To evaluate these policies, it is necessary to understand the economic benefits and costs of reducing the number of smokers. We conduct a panel data analysis while controlling for unobserved heterogeneity and show that smoking is not the main factor causing observed wage differentials between smokers and non-smokers in Japan.As for the relationship between smoking and wages, we find that male smokers receive lower hourly wages than male nonsmokers. Smoking behavior generally depends on environmental, congenital, or social factors. These factors, however, do not only affect smoking behavior but also the wages of these individuals. To isolate the effect of smoking on wages, we control for individual heterogeneity using panel data to verify the existence of such an effect.Using tax change as an instrumental variable in the fixed effects model and several robustness checks, the results show that smoking has no statistically significant effect on wage rate. This suggests that smoking does not directly affect wages; rather, unobserved individual heterogeneity (other factors influencing both smoking and wages) leads to wage differences between smokers and nonsmokers. Nevertheless, smoking can affect wages in the long run through health problems. The nine-year panel data used in this research, however, is insufficient to capture the long-term indirect health effects. Thus, future research should consider analyzing indirect health effects using panel data spread across a wider time frame.     

Formula feeding: Evidence for health,nutrition and early childhood development during the critical first 1000 days from rural China

Infant and young child feeding is crucial to physical and mental development and long-term health. In developing settings, the widespread use of formula raises concerns regarding the growth and development of infants. However, little is known about the role that formula may play in the observed poor infant health, nutrition and development in developing areas. Using a rich panel dataset of 1802 infants aged 6–30 months collected at six months intervals from rural China, we describe the prevalence of formula feeding, identify households that are more likely to use formula, and examine the associations between formula feeding with various dimensions of infant health, nutrition and development outcomes: anthropometric measurements, infant illnesses, cognitive, psychomotor, and socio-emotional development. We found infant formula is widely used in rural China, and it is significantly associated with infant health and nutritional outcomes - formula feeding is associated with a 4.59-point increase in Hemoglobin concentration and a 13% reduction in anemia prevalence, but is also associated with a 0.11-sd decrease in weight-for-age and height-for-age Z-scores. Moreover, infants are more likely to be fed formula when their families have higher socioeconomic status, when their parents have out-migrated, and when they have no siblings. Our findings suggest that there is a need to promote age-appropriate feeding practices, with an emphasis on families who are particularly in need of guidance, to reduce over-reliance on formula, and provide support for mothers to delay their migration or create pathways for rural parents to bring their children with them when they migrate.     

Return to Work After Long Term Sickness

In this paper the impact of vocational interventions on the duration until reemployment of long term sick workers is studied, taking account of self-perceived health and other personal, health and vocational characteristics. We use a longitudinal dataset containing three waves of interviews with employees who were still on the sickness rolls 9 months after calling in sick. We compare a semi-parametric Cox model with a Weibull model to allow for unobserved heterogeneity. The results from these models are similar. They point to the importance of the set of accommodation and rehabilitation activities that employers and occupational health agencies employ and of a timely start of such activities. Their effectiveness shows that the series of reforms in sickness and disability schemes that were introduced from 2002 onwards have been quite successful.     

Does the first job really matter? State dependency in employment status in Japan

This paper examines whether the failure to obtain regular full-time employment at the time of graduation has a long-term impact on subsequent employment status. Using micro data from the Japanese General Social Surveys and the job opening ratio (yuko kyujin bairitu) as an instrument for entry-level employment status, I show that the observed correlation between current and entry-level employment status produces a true causal link, which is not attributable to sorting on unobserved aptitude. I also discuss various underlying mechanisms including social institutions and stigmatization. J. Japanese Int. Economies 21 (3) (2007) 379–402.     

Who Are the Potential Smokers of Smuggled Cigarettes?

Although smuggled cigarettes have been a prevalent problem and a severe challenge to public health and welfare around the world, little is known about the behavior associated with smoking smuggled cigarettes and the issue is difficult to study due to data limitations. By means of a population‐based tobacco survey conducted in Taiwan, the present paper applies a latent class model to identify potential smokers who are either currently or will at some point in the future be consuming smuggled cigarettes. This methodology, in contrast to the traditional discrete models, allows potential smokers who are more inclined to smoke smuggled cigarettes to be endogenously classified. The empirical results indicate that socio‐demographic factors do increase the inclination to smoke smuggled cigarettes after unobserved heterogeneity has been accounted for.     

Endogeneity and the Dynamics of Voluntary Disclosure Quality: Is there Really an Effect on the Cost of Equity Capital?*

Research on the effects of voluntary disclosure quality on the cost of equity capital is often plagued by endogeneity concerns. In this paper, I use a dynamic panel system GMM estimator, which provides internal instruments from the firm's history that directly address endogeneity arising from unobserved heterogeneity and simultaneity. By using hand-collected voluntary disclosure scores for firms listed in the Swiss stock exchange, I examine the dynamic relation between voluntary disclosure quality and the cost of equity capital in a panel over a period of 10 years. The results suggest that the relation between voluntary disclosure quality and the cost of equity capital becomes insignificant after controlling adequately for potential dynamic endogeneity, simultaneity, and unobserved heterogeneity.     

出生排序与行为偏好的经济实验研究

作为社会科学研究中的一个家庭背景指标,出生顺序和子女性别结构会影响人们的行为选择以及行为结果。文章以大学生为被试,采用实验室实验方法研究了出生顺序和子女性别结构对信任行为、风险偏好与竞争偏好的影响。实验研究发现：二胎的信任水平和竞争偏好都显著高于一胎。虽然二胎的风险偏好高于一胎,但统计上并不显著;同时,子女性别结构会影响出生顺序效应。在信任水平方面,混合结构下的二胎显著高于一胎,而同性结构下的出生顺序效应并不显著;在风险偏好与竞争偏好方面,同性结构下的二胎显著高于一胎,而混合结构下的出生顺序效应不显著。文章结论能够加深人们对不同出生顺序下个体行为偏好异质性的理解,具有一定的政策含义。     

Inequality and infant and childhood mortality in the United States in the twentieth century

This paper deals with the issue of using infant and childhood mortality as an indicator of inequality. The case is that of the United States in the 20th century. Using microdata from the 1900 and 1910 Integrated Public Use Microsamples (IPUMS), published data from the Birth Registration Area in the 1920s, results from a number of surveys, and the Linked Birth & Infant Death Files from the National Center for Health Statistics for 1991, infant and child mortality can be related to such other variables as occupation of father or mother, education of father or mother, family income, race, ethnicity, and residence. The evidence shows that, although there have been large absolute reductions in the level of infant and child mortality rates and also a reduction in the absolute levels of differences across socioeconomic groups, relative inequality has not diminished over the 20th century.     

Children’s Work in Nigeria: Exploring the Implications of Gender, Urban–Rural Residence, and Household Socioeconomic Status

Child labor in developing countries continues to be a topic of policy and academic concern, particularly in Africa where there are more working children than in any other region. Scholarly attention has been drawn in part to gender, place of residence, and socioeconomic status as factors that shape the type of work that children perform and whether it impacts educational attainment. I explore these issues in the context of Nigeria through analysis of data from the 2004 Nigeria Demographic and Health Survey EdData Survey. A series of logistic regression models of child labor confirm the existence of gender and, especially, socioeconomic disparities in children??s work. The data also indicate that girls and rural children face a double risk of working if they belong to poor households. A policy implication is that poverty alleviation programs??such as Mexico??s Oportunidades program (the erstwhile PROGRESA)??may help to reduce those forms of child labor that interfere with schooling. That this program has been found to more beneficial for girls suggests it may be particularly appropriate for Nigeria where gender disparities persist.     

Does Ethnicity Matter for Access to Childhoodand Adolescent Health Capital in China? Evidence from the Wage-Height Relationship in the 2006 China Health and Nutrition Survey

This paper considers whether ethnicity conditions the return and access to health capital in China. Given that the wage-height relationship reflects the labor market earnings returns to childhood and adolescent health capital, differences in the labor market returns to height by ethnicity reflect ethnic differences in access to health capital during childhood and adolescence. We theoretically motivate the role of height in earnings by providing a Bioeconomic rationale for stature and height determining individual wages, and estimate height-augmented Mincerian earnings functions with data from the 2006 China Health and Nutrition Survey. Our results show that when the effects of unobserved genetic influences on adult height are accounted for, the labor market return on height is higher for Chinese ethnics. This suggests that in China there are ethnic disparities in access to the inputs that produce childhood and adolescent health capital.     

Long work hours and health in China

Using several waves of the China Health and Nutrition Survey (CHNS), this study analyzes the effect of long work hours on health and lifestyles in a sample of 18- to 65-year-old Chinese workers. Although working long hours does significantly increase the probabilities of high blood pressure and poorer reported health, the effects are small. Also small are the negative effects of long work hours on sleep time, fat intake, and the probabilities of sports participation or watching TV. We find no positive association between work time and different measures of obesity and no evidence of any association with calorie intake, food preparation and cooking time, or the sedentary activities of reading, writing, or drawing. In general, after controlling for a rich set of covariates and unobserved individual heterogeneity, we find little evidence that long work hours affect either the health or lifestyles of Chinese workers.