Urban Poverty and Health in Developing Countries: Household and Neighborhood Effects

In the U.S. and other high-income countries, where most of the population lives in urban areas, there is intense scholarly and program interest in the effects of household and neighborhood living standards on health. Yet very few studies of developing-country cities have examined these issues. This paper investigates whether in these cities, the health of women and young children is influenced by both household and neighborhood standards of living. Using data from the urban samples of some 85 Demographic and Health surveys, and modelling living standards using factor-analytic MIMIC methods, we find, first, that the neighborhoods of poor households are more heterogeneous than is often asserted. To judge from our results, it appears that as a rule, poor urban households do not tend to live in uniformly poor communities; indeed, about 1 in 10 of a poor household's neighbors is relatively affluent, belonging to the upper quartile of the urban distribution of living standards. Do household and neighborhood living standards influence health? Applying multivariate models with controls for other socioeconomic variables, we discover that household living standards have a substantial influence on three measures of health: unmet need for modern contraception; birth attendance by doctors, nurses, or trained midwives; and children's height for age. Neighborhood living standards exert significant additional influence on health in many of the surveys we examine, especially in birth attendance. There is considerable evidence, then, indicating that both household and neighborhood living standards can make a substantively important difference to health.poverty, health, developing countries, urban, factor analysis, neighborhood

Mortality decline and the demographic response: Toward a new agenda

A central proposition of demographic transition theory is that declines in infant and child mortality can encourage subsequent declines in fertility. Even the earliest formulations of the theory recognized that fertility decline would occur only with a lag, but neither theory nor empirical work has explored the length of such lags. This paper urges that individual perceptions and beliefs about mortality risks, conspicuously absent from the demographic research agenda, be studied directly. It proceeds to link mortality perceptions to health care decisionmaking and investments in children. The paper concludes by calling for a new agenda on mortality decline. This agenda would focus on three main themes: individual perceptions of health levels and trends, including mortality risks, with the concept of social learning being prominent; the overlap of modern and traditional health care systems and the associated beliefs, with an emphasis on the perceived efficacy of modern modes of prevention and treatment; and the role played by perceived mortality risks and health in affecting parental investments in schooling, with attention to adult as well as to child mortality and health. These issues can be studied profitably in high-mortality settings as well as in settings of moderate mortality risk

Poverty and public services in developing-country cities

This paper examines the availability of basic public services such as water supply and sanitation in the cities and towns of developing countries, using data drawn from the Demographic and Health Surveys. Inadequate provision of public services can compromise health, hinder economic growth, and stymie efforts to reduce poverty. We find that wide rural-urban gaps remain in service delivery, and that smaller cities-where about half of urban residents live-are notably under-served by comparison with larger cities

The quantity-quality transition in Asia

Societies in which fertility is falling and human capital investment per child increasing are experiencing a “quantity-quality transition.” Such transitions imply, over the long term, both slower rates of labor force growth and higher levels of human capital per worker. They are fundamental to economic development. Yet, these transitions are neither automatic or self-propelling. Their momentum depends on competing forces acting at both the family and the macroeconomic levels; the balance can easily tip against further transition. Family decisions about schooling are largely motivated by its private economic returns. These returns are determined in labor markets, and here the logic of supply and demand applies. When families decide to invest more deeply in their children, they collectively produce right-ward shifts in the supply of educated young labor. If other things are held fixed, the rate of return to schooling should then fall, and this, in turn, should dampen parental enthusiasm for further educational investments. Reductions in the rate of return should also weaken the case for continued reductions in fertility. Unless they are counterbalanced by other forces, such negative feedbacks would tend to bring a quantity-quality transition to a halt. The aim of this paper is to explore both the negative and positive feedbacks that have affected the quantity-quality transition in Asia. We assemble the leading hypotheses and evidence on the macroeconomic forces, both domestic and international, that could influence returns to schooling. We also examine family factors, giving particular attention to the intergenerational links that seem to have maintained the momentum of the Asian transition. Our conclusion is that negative feedbacks associated with increases in the relative supplies of educated labor have been largely offset by beneficial macroeconomic change (resulting from increases in the stock of physical capital, substantial technological change, and trade) and by powerful family-level effects that, over the generations, have continued to propel the transition

Girls on the Move: Adolescent Girls & Migration in the Developing World

Adolescent girls in developing countries are migrating to urban areas in ever greater numbers. While migration can be risky, for the majority of girls, migration can increase opportunities and economic stability and provide them with the autonomy to make decisions about their lives. Preventing the worst outcomes and helping girls succeed are essential to unlocking the benefits of migration. When migrant girls can take advantage of the benefits, they can be a powerful force for change in the developing world—improving lives and reducing poverty in their communities and countries. This Girls Count report examines the social and economic determinants of internal migration for adolescent girls in developing countries, and identifies the links between migration, risk, and opportunity. A wide range of evidence on migrant girls is explored, including findings on programs for girls and an agenda for increasing the visibility of migrant girls, reducing their vulnerability, and realizing their full potential

Timescale Correlation between Marine Atmospheric Exposure and Accelerated Corrosion Testing - Part 2

Evaluation of metals to predict service life of metal-based structures in corrosive environments has long relied on atmospheric exposure test sites. Traditional accelerated corrosion testing relies on mimicking the exposure conditions, often incorporating salt spray and ultraviolet (UV) radiation, and exposing the metal to continuous or cyclic conditions similar to those of the corrosive environment. Their reliability to correlate to atmospheric exposure test results is often a concern when determining the timescale to which the accelerated tests can be related. Accelerated corrosion testing has yet to be universally accepted as a useful tool in predicting the long-term service life of a metal, despite its ability to rapidly induce corrosion. Although visual and mass loss methods of evaluating corrosion are the standard, and their use is crucial, a method that correlates timescales from accelerated testing to atmospheric exposure would be very valuable. This paper presents work that began with the characterization of the atmospheric environment at the Kennedy Space Center (KSC) Beachside Corrosion Test Site. The chemical changes that occur on low carbon steel, during atmospheric and accelerated corrosion conditions, were investigated using surface chemistry analytical methods. The corrosion rates and behaviors of panels subjected to long-term and accelerated corrosion conditions, involving neutral salt fog and alternating seawater spray, were compared to identify possible timescale correlations between accelerated and long-term corrosion performance. The results, as well as preliminary findings on the correlation investigation, are presented

Urban poverty and health in developing countries: Household and neighborhood effects [Arabic]

In the United States and other high-income countries, where most people live in cities, there is intense scholarly and program interest in the effects of household and neighborhood living standards on health. Yet very few studies of developing-country cities have examined these issues. This paper investigates whether in these cities the health of women and young children is influenced by both household and neighborhood standards of living. Using data from the urban samples of 85 Demographic and Health Surveys, and modeling living standards using factor-analytic MIMIC methods, we find, first, that the neighborhoods of poor households are more heterogeneous than is often asserted. To judge from our results, it appears that as a rule, poor urban households do not tend to live in uniformly poor communities; indeed, about one in ten of a poor household’s neighbors is relatively affluent, belonging to the upper quartile of the urban distribution of living standards. Do household and neighborhood living standards influence health? Applying multivariate models with controls for other socioeconomic variables, we discover that household living standards have a substantial influence on three measures of health: unmet need for modern contraception; attendance of a trained provider at childbirth; and children’s height for age. Neighborhood living standards exert significant additional influence on health in many of the surveys we examine, especially in birth attendance. There is considerable evidence, then, indicating that both household and neighborhood living standards can make a substantively important difference to health

Poverty and children\u27s schooling in urban and rural Senegal [Arabic]

This paper presents findings of an investigation into the effects of living standards and relative poverty on children’s schooling in urban and rural areas of Senegal. To measure living standards, we apply a multiple-indicator, multiple-cause (MIMIC) factor-analytic model to a set of proxy variables collected in the 2000 Multiple Indicator Cluster Survey and extract an estimate of the relative standard of living for each household. Using this estimate, we find that in Senegal’s urban areas, living standards exert substantial influence on three measures of schooling: Whether a child has ever attended school; whether he or she has completed at least four grades of primary school; and whether he or she is currently enrolled. In rural areas of Senegal, however, the effects are weaker and achieve statistical significance only for the wealthiest fifth of rural households. Two educational inequalities persist with living standards held constant. First, the advantages enjoyed by urban families in Senegal remain considerable: Even the poorest fifth of urban children are more likely than rural children to have attended school, to have completed four years or more of primary education, and to be currently enrolled. Second, gender gaps in schooling are pervasive and are only modestly influenced by standards of living. In both urban and rural areas of Senegal, girls suffer from marked disadvantages relative to boys in all three measures of schooling. In wealthier urban households, girls’ disadvantages are smaller, but not completely eliminated. Furthermore, no systematic reduction in female disadvantage is apparent in rural Senegal, even in the uppermost stratum of households. To judge from these findings, in Senegal income growth alone is unlikely to close the schooling gap between urban and rural areas or between boys and girls

Poverty and children\u27s schooling in urban and rural Senegal

This paper presents findings of a Population Council investigation into the effects of living standards and relative poverty on children’s schooling in urban and rural areas of Senegal. The research shows that in Senegal’s urban areas, living standards exert substantial influence on three measures of schooling: whether a child has ever attended school; whether he or she has completed at least four grades of primary school; and whether he or she is currently enrolled. In rural areas of Senegal, however, the effects are weaker and achieve statistical significance only for the wealthiest fifth of rural households. To judge from the findings presented, in Senegal income growth alone is unlikely to close the schooling gap between urban and rural areas or between boys and girls