Rural–Urban Migration and Cross-National Variation in Infant Mortality in Less Developed Countries

The relationship between migration and child health in individual countries is well known, but the cross-national variation in this relationship is largely untested. Using Demographic and Health Survey (DHS) data from 52 medium and low income countries, this study examines the effect of rural–urban migration on infant mortality and whether its effect varies cross-nationally. A secondary objective is to determine whether there is a relationship between the time a child is born in the migration process and infant mortality. Hypotheses are developed on the basis of competing theories on the relationship between migration and health. There are modest, but significant cross-national effects of rural–urban migration on infant mortality, which were better revealed in the presence of family- and child-level variables. The results also show that the unadjusted effects of rural–urban migration are quite substantial, but were largely accounted for by family- and child-level factors including education, socioeconomic status (SES), marital status, birth order, maternal age at child’s birth, and inter-births intervals. The results largely point to a selection process, which is further confirmed by results showing that the hazards of infant death increase with length of urban residence. Programs that target increasing maternal education, improving household SES, and lengthening interbirth intervals would therefore greatly benefit child survival in less developed countries.     

The effect of piped water on early childhood mortality in Urban Brazil, 1970 to 1976

The effects of access to piped water on the trends in child mortality and on differentials by income class are analyzed using data on surviving children and other variables in samples of urban mothers aged 20–29 in 1970 and 1976. Path analytic regression techniques are used to test a recursive model linking the supply and demand for piped water to selected household and community level variables, and to examine their joint effect on child mortality. The model’s estimated parameters for 1970 and 1976 are used to analyze changes in mortality between the two dates. Increased maternal education accounts for a larger share of the mortality decline than any other single factor. Increased access to piped water also contributes to mortality decline, and such access helps to reduce the mortality differential between lower and higher income and education classes.     

Community characteristics,individual and household attributes,and child survival in brazil

This paper presents an analysis of the relationship between community characteristics, household attributes, and child survival in Brazil. The principal objectives are to investigate how the social and environmental context in which a child is raised affects his or her survival chances, and to analyze how household variables modify the effects of community characteristics. The interaction effects we examine help to explain the effects of community characteristics on child survival chances by illuminating the most likely pathways through which these covariates operate. This information is also useful for predicting who is most likely to benefit from public policies to improve community infrastructure. education, and health care.     

Data on survival of recent births as a source of child mortality estimates in the developing world: An assessment of census data

In many less developed countries, household surveys collect full and summary birth histories to provide estimates of child mortality. However, full birth histories are expensive to collect and cannot provide precise estimates for small areas, and summary birth histories only provide past child mortality trends. A simple method that provides estimates for the most recent past uses questions about the survival of recent births in censuses or large household surveys. This study examines such data collected by 45 censuses and shows that on average they tend to underestimate under-5 mortality in comparison with alternative estimates, albeit with wide variations. In addition, the high non-sampling uncertainty in this approach precludes its use in providing robust estimates of child mortality at the country level. Given these findings, we suggest that questions about the survival of recent births to collect data on child mortality not be included in census questionnaires.     

The effect of female migration on infant and child survival in Uganda

This article uses data from the 1996 Uganda Demographic and Health Survey to examine whether migration of women improves the survival chances of their children to age five. We expand on prior research by testing not only the hypothesized positive effect of rural-urban migration, but also the effects of other migration stream behaviours on child survival. Results show that up to 10% of children die before age five and within-group differences in mortality exist among urban and rural children depending on their mother's migration status. Only urban-urban migration was significantly related to child survival, compared to rural non-migrants, after controlling for other factors, although other streams of migration (rural-urban, urban-rural, rural-rural) were positively related to child survival. Generally, migration explains a small component of the variance in child survival. Several other factors, including parents' education, household size, household headship, mother's age at birth, duration of breastfeeding, and place of delivery have a significant predictive power on child survival.     

Do household structure and household economic resources predict childhood immunization? Evidence from Jamaica and Trinidad and Tobago

This study assesses the influence of household structure and resource dilution characteristics on childrens immunization coverage in Jamaica and Trinidad and Tobago. The study has three objectives: (1) to compare the impact of different types of household structures (e.g., single parent, two-parent, cohabiting and extended) on child immunization; (2) to examine the effects of household income and resource dilution on child immunization; and (3) to determine whether household structure and resource dilution interact to affect child immunization in these contexts.We use data from the Jamaica 1996 and Trinidad and Tobago 1997 Living Standards Measurement Study Survey and a series of logistic regression models to test hypotheses derived from the current child well-being literature. The results show that household income and household structures selectively predict childrens immunization coverage in both contexts, with significant interaction effects enhancing the interpretation for Jamaica. The key policy implications that emerge from this study are that household structure and income are crucial for understanding child immunization in the Caribbean.     

Fertility effects of child benefits

We exploit the 1996 reform of the German child benefit program to identify the causal effect of heterogeneous child benefits on fertility. While generally the reform increased child benefits, the exact amount of the increase varied by household income and the number of children. We use these heterogeneities to identify their causal effects on fertility in a difference-in-difference setting. We apply the large samples of the German Mikrozensus and the rich data of the German Socio-Economic Panel (SOEP). The reform effects on low-income couples are not statistically significant. We find some support for positive fertility effects for higher as opposed to lower income couples deciding on a second birth.     

Consumer boycott, household heterogeneity, and child labor

Consumer boycott campaigns against goods that are produced using child labor are becoming increasingly popular. Yet there is still no consensus on which are the effects of such type of activism on child labor in developing countries. In fact, if some agreement is to be found in the recent economic literature, it is that the boycott does not reduce child labor. We contribute to this discussion presenting a simple model which shows that there are conditions under which a consumer boycott reduces child labor. We consider a small country two-factor economy populated by heterogeneous households. The boycott affects both the adult and the child labor markets. We show that the effects are heterogeneous and depend on household characteristics and on the income distribution. We derive the conditions under which the consumer boycott reduces child labor not only for nonpoor households but also for some of the households whose’ income is—before the boycott—under the subsistence level.     

Polygyny and child survival in Nigeria: Age-dependent effects

Mortality risks under age five are estimated using data from the 1990 Nigerian Demographic and Health Survey for children in monogamous and polygynous families. Integrating existing theories on polygyny’s relationship with infant and child mortality and some demographic concepts, the study shows that polygyny has different effects on infant and child mortality at different ages. The results indicate that polygyny does not have a significant effect on neonatal mortality (age less than one month). In contrast to the results of previous research, polygyny is significantly associated with lower child mortality during the post-neonatal period (1–11 months), but not during childhood (12–59 months). The study found socio-economic factors to be important confounders of the relationship between polygyny and mortality during the neonatal and post-neonatal periods. The protective effect of polygyny during the post-neonatal period suggests the need to further investigate circumstances that may favour post-neonatal child survival in polygynous families including availability of childcare.     

Toward a Fuller Understanding of Nonresident Father Involvement: An Examination of Child Support,In-Kind Support,and Visitation

The majority of studies of nonresident father involvement focus on either child support payments or visitation. However, nearly 60% of custodial parents receive in-kind (i.e., noncash) support of some form. Using data from a nationally representative sample of children with nonresident fathers (the Child Development Supplement of the Panel Study of Income Dynamics), we simultaneously investigate via a trivariate probit model the relationships among three aspects of father involvement: child support, in-kind support, and visitation. We find that these dimensions of involvement are positively related and highly intertwined with the strongest positive relationship being between in-kind support and visitation. Additionally, these aspects of involvement have different sets of determinants. Economic characteristics of the resident household are more frequently associated with the receipt of child support, while demographic characteristics of the child, mother, father and resident household are related to all three aspects of nonresident father involvement. Generally speaking, when differences in impacts of determinants vary for lower and higher income resident families, the differences are related to the receipt of child support. Fewer differences are observed with regard to in-kind support receipt or with visitation. Our model also measures how unobserved factors are related to these facets of involvement. Most notable across income groups is that unobserved factors are positively related for child support and in-kind support receipt for higher income resident households. This relationship is insignificant for lower income resident households.     

The impact of extreme weather events on education

This paper provides new evidence on the long- and medium-term impact of extreme weather events on education. Our focus is on Mongolia, where two extremely severe winters caused mass livestock mortality. We use household panel data with information on households’ preshock location, combined with historic district-level livestock census data and climate data. Our econometric strategy exploits exogenous variation in shock intensity across space and time, using a difference-in-differences approach. Results indicate that individuals who experience the shock while of schooling age and living in severely affected districts are significantly less likely to complete mandatory education, both in the long and medium terms. The effects are driven by individuals from herding households, while no significant effects are found for individuals from nonherding households. This finding renders it unlikely that extreme winters affect education through school closures during extreme climatic conditions, to which all children were exposed. Moreover, there is no evidence for a differential impact of extreme weather events by gender. This suggests that the effects are not mainly channeled through increased child labor in herding but rather they are related to reductions in household income.     

Childhood Mortality Estimates Using the Preceding Birth Technique: Some Applications and Extensions

The Preceding Birth Technique has proved to be a simple and effective way of estimating mortality during the first two years of life when the question on the survival of the preceding child is asked at the time of a subsequent delivery. This article shows first that earlier worries about significant biases in the estimates are unfounded. Amongst the possible sources of bias considered are: the link between birth-interval length and child survival; the effects of birth intervals differing from 30 months; and the contribution of other systematic biases, such as the omission of all reports on the survival of a woman's last child. Results from a trial in the maternity clinics in Bamako, Mali are presented to illustrate both practical aspects of the method and selection effects by age and parity. A strong association between the survival chances of the succession of children born to one mother emerges. The second part of the article describes how the method can be applied more widely by asking the key questions at times other than a subsequent delivery. Adjustment factors are developed to correct for the biases introduced when the sample includes only mothers whose last-born children are alive at interview.Finally, some examples are given of recent use of the question on the survival of the preceding child in household surveys.     

The empowerment of women,fertility, and child mortality: Towards a theoretical analysis

This paper examines one avenue through which female autonomy impinges on fertility and child mortality in developing countries. A simple model is set out in which couples are motivated to have children for old age security purposes. The decisions of a couple regarding fertility and allocation of resources for the healthcare of their children are made within a bargaining framework. An increase in female autonomy translating into an increase in the relative bargaining power or the threat point utility of mothers is shown to reduce fertility and also to reduce child mortality rates. Paradoxically, the increase in female autonomy within a household may increase the disadvantage suffered by female children in that household with respect to survival. Received: 4 August 1999/Accepted: 7 September 2000     

Time or Money: The Relationship Between Educational Attainment,Income Contribution,and Time with Children Among Korean Fathers

Korean parents’ enthusiasm for and financial investment in children’s education are well known. However, parental time with children, particularly fathers’ time, and how it differs by parental education and income are not fully explored. Using the 2009 Korean Time Use Survey data, this paper examines how much time Korean fathers spend with children, how it differs by their education and income contribution to household, and which aspect Korean fathers choose to prioritize: time or money. In order to investigate a cross-couple effect, this paper also considers mothers’ time with children and their level of education. The sample is limited to married couples with the youngest child aged between 0 and 12. The stepwise multivariate regression analysis indicates that fathers’ education consistently shows a positive relationship with childcare time. Although fathers’ income contribution to household income has a negative effect on childcare time, positive effects of fathers’ education remain. Both mother’s education and childcare time increase fathers’ time with children. Korean fathers seem to juggle dual demands for money and time contribution and highly educated fathers tend to prioritize time over money. Given that time has become an important resource, different time investment in children by parental socioeconomic status may exacerbate social inequality.     

Changes in fertility patterns can improve child survival in Southeast Asia

This analysis of 1988 Philippine Demographic Survey data provides information on the direct and indirect effects of several major determinants of childhood mortality in the Philippines. Data are compared to rates in Indonesia and Thailand. The odds of infant mortality in the Philippines are reduced by 39% by spacing children more than two years apart. This finding is significant because infant mortality rates have not declined over the past 20 years. Child survival is related to the number of children in the family, the spacing of the children, the mother's age and education, and the risks of malnutrition and infection. Directs effects on child survival are related to infant survival status of the preceding child and the length of the preceding birth interval, while key indirect or background variables are maternal age and education, birth order, and place of residence. The two-stage causation model is tested with data on 13,716 ever married women aged 15-49 years and 20,015 index children born between January 1977 and February 1987. Results in the Philippine confirm that maternal age, birth order, mortality of the previous child, and maternal education are directly related to birth interval, while mortality of the previous child, birth order, and maternal educational status are directly related to infant mortality. Thailand, Indonesia, and the Philippines all show similar explanatory factors that directly influence infant mortality. The survival status of the preceding child is the most important predictor in all three countries and is particularly strong in Thailand. This factor acts through the limited time interval for rejuvenation of mother's body, nutritional deficiencies, and transmission of infectious disease among siblings. The conclusion is that poor environmental conditions increase vulnerability to illness and death. There are 133% greater odds of having a short birth interval among young urban women than among older rural women. There is a 29% increase in odds for second parity births compared to third or higher order parities. Maternal education is a strong predictor of infant survival only in the Philippines and Indonesia. Adolescent pregnancy is a risk only in Indonesia. Socioeconomic factors are not as important as birth interval, birth order, and maternal education in determining survival status.     

贫困地区劳动力迁移、农户收入与贫困的缓解——基于新疆农户面板数据的实证分析

本文基于新疆30个贫困县、3000个农户、2008-2010年的微观面板数据,在控制了家庭规模、劳动力数量等家庭特征变量和粮食播种面积等村庄特征变量的前提下．运用固定效应法与工具变量法分别考察了劳动力迁移规模、迁移方式与迁移区位对家庭收入的影响．并进一步分析了劳动力迁移对贫困的缓解效应。回归结果表明：劳动力迁移规模虽然对农户农业收入有负向影响．但显著提高了农户人均收入与利他性收入：自发性迁移与政府组织性迁移方式均能显著提高农户收入,且自发性迁移的作用更强;省内县外迁移对农户收入的提高最为显著,其次为县内乡外迁移．省外迁移不影响农户收入：劳动力迁移规模提高了中等收入农户的收入水平。但对贫困户的贫困无缓解效应．也不影响富裕户的收入水平。     

The uncertain lifetime and the timing of human capital investment

I examine the effects of mortality decline on fertility and human capital investment decision of parents taking into account the uncertainty about child survival. I propose a model, where parents decide on their fertility before the uncertainty is realized, but they choose to invest only in human capital of their surviving children. The model implies a positive relationship between mortality and fertility and a negative one between mortality and educational investment. It has been argued elsewhere that as, in reality, most of the mortality decline occurred in infancy, it should not affect the human capital investment decision, which comes later in life. Thus, increased survival chances should not promote growth by raising the human capital investment. This paper argues the contrary and proposes a mechanism where mortality decline at any age before the teen years can promote growth by raising human capital investment regardless of the timing of the educational investment.      

农村劳动力流动及其对收入的影响——来自内蒙古赤峰市农村地区的证据

大量闲置的剩余劳动力从农村中流动出来 ,显著地提高了农村居民的收入。其影响机制是 :　　虽然外出劳动力户的家庭总收入低于非外出劳动力户 ,然而 ,外出劳动力对家庭收入的贡献 ,却要大于非外出劳动力。在影响劳动力外出决定的因素中 ,交通条件的影响并不大 ,而那些信息基础设施条件比较好的地区和教育程度高的劳动力 ,更容易外出打工     

Birth Intervals and Childhood Mortality in Rural Bangladesh

This study investigates the relationship between birth intervals and childhood mortality, using longitudinal data from rural Bangladesh known to be of exceptional accuracy and completeness. Results demonstrate significant but very distinctive effects of the previous and subsequent birth intervals on mortality, with the former concentrated in the neonatal period and the latter during early childhood. The impact of short birth intervals on mortality, however, is substantially less than that found in many previous studies of this issue, particularly for the previous birth interval. The findings are discussed in terms of the potential for family planning programs to contribute to improved child survival in settings such as Bangladesh.     

Frontier settlement and child survival in the Brazilian Amazon

This study uses sample data from the 1960, 1970 and 1980 demographic censuses to estimate child survival rates among children born to native and migrant women in the Brazilian Amazon. Estimates show that by 1980 the probability of death among children was quite similar when comparing native and migrant populations in the aggregate. However, after controlling for household economic activity and income, death rates were higher among migrant children. The findings suggests that nonmigrants are better able than recent colonists to mobilize physical and social environments to safeguard the health of their children.