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Urban growth and spatial segregation increase disaster risk: lessons learned from the 2023 disaster on the North Coast of São Paulo, Brazil
Urban growth and an increase in urban poverty are important drivers of disaster risk. However, to what extent these processes influence the dynamics of exposure and vulnerability remains uncertain. We hereby contribute to this discussion by presenting key lessons learned from the multi-hazard event that hit the North Coast of São Paulo (NCSP), Brazil, in February 2023. While the event was triggered by rainfall amounts of over 500 mm a day, urban development processes also influenced the impacts of the disaster. In this paper, we quantify these influences through a data integration approach combining empirical evidence on the historical evolution of urban settlements with damage mapping. We also evaluate the factors driving urban growth and spatial segregation in the region. We found that the impacts of the disaster were largely attributed to historical built-up land use changes, as 46 % fewer buildings would have been damaged if the same event had happened around 2 decades earlier, i.e., in 2001. Moreover, precarious urban settlements were considerably more exposed and vulnerable to the event, as evidenced by the density of damaged buildings, i.e., 12 times higher than in non-precarious settlements. We also observed strong patterns of spatial segregation in the NCSP. For instance, precarious settlements are much more frequent at hazardous locations, including on and at shorter distances from steep slopes. While this paper presents an analysis at the local level, the challenges of urbanization and growing intra-urban inequalities are global. Thus, these results reinforce the importance of accounting for such urban processes in disaster risk reduction interventions and the urgent need for research efforts that go beyond the hazard component, e.g., through an improvement of methods to simulate urban scenarios in the scope of disaster risk.
Journal Article
Income Segregation Between Schools and School Districts
Although trends in the racial segregation of schools are well documented, less is known about trends in income segregation. We use multiple data sources to document trends in income segregation between schools and school districts. Between-district income segregation of families with children enrolled in public school increased by over 15% from 1990 to 2010. Within large districts, between-school segregation of students who are eligible and ineligible for free lunch increased by over 40% from 1991 to 2012. Consistent with research on neighborhood segregation, we find that rising income inequality contributed to the rise in income segregation between schools and districts during this period. The rise in income segregation between both schools and districts may have implications for inequality in students' access to resources that bear on academic achievement.
Journal Article
How Gender Segregation in Higher Education Contributes to Gender Segregation in the U.S. Labor Market
What is the relationship between gender segregation in higher education and gender segregation in the labor market? Using Fossett's (2017) difference-of-means method for calculating segregation indices and data from the American Community Survey, we show that approximately 36% of occupational segregation among college-educated workers is associated with gender segregation across 173 fields of study, and roughly 64% reflects gender segregation within fields. A decomposition analysis shows that fields contribute to occupational segregation mainly through endowment effects (men's and women's uneven distribution across fields) than through the coefficient effects (gender differences in the likelihood of entering a male-dominated occupation from the same field). Endowment effects are highest in fields strongly linked to the labor market, suggesting that educational segregation among fields in which graduates tend to enter a limited set of occupations is particularly consequential for occupational segregation. Within-field occupational segregation is higher among heavily male-dominated fields than other fields, but it does not vary systematically by fields' STEM status or field–occupation linkage strength. Assuming the relationship between field segregation and occupational segregation is at least partly causal, these results imply that integrating higher education (e.g., by increasing women's representation in STEM majors) will reduce but not eliminate gender segregation in labor markets.
Journal Article
Inequality in Children's Contexts: Income Segregation of Households with and without Children
Past research shows that income segregation between neighborhoods increased over the past several decades. In this article, I reexamine income segregation from 1990 to 2010 in the 100 largest metropolitan areas, and I find that income segregation increased only among families with children. Among childless households—two-thirds of the population—income segregation changed little and is half as large as among households with children. I examine two factors that may account for these differences by household composition. First, I find that increasing income inequality, identified by past research as a driver of income segregation, was a much more powerful predictor of income segregation among families with children, among whom income inequality has risen more. Second, I find that local school options, delineated by school district boundaries, contribute to higher segregation among households with children compared to households without. Rising income inequality provided high-income households more resources, and parents used these resources to purchase housing in particular neighborhoods, with residential decisions structured, in part, by school district boundaries. Overall, results indicate that children face greater and increasing stratification in neighborhood contexts than do all residents, and this has implications for growing inequalities in their future outcomes.
Journal Article
Segregation and mistrust : diversity, isolation, and social cohesion
\"Eric M. Uslaner examines the theoretical and measurement differences between segregation and diversity and summarizes results on how integrated neighborhoods with diverse social networks increase trust in the United States, Canada, the United Kingdom, Sweden, and Australia\"-- Provided by publisher.
Book
The Relationship of Historical Redlining with Present-Day Neighborhood Environmental and Health Outcomes: A Scoping Review and Conceptual Model
Following the Great Depression and related home foreclosures, the federal government established new agencies to facilitate access to affordable home mortgages, including the Home Owners’ Loan Corporation (HOLC) and Federal Housing Administration (FHA). HOLC and FHA directed widespread neighborhood appraisals to determine investment risk, referred to as “redlining,” which took into account residents’ race. Redlining thereby contributed to segregation, disinvestment, and racial inequities in opportunities for homeownership and wealth accumulation. Recent research examines associations between historical redlining and subsequent environmental determinants of health and health-related outcomes. In this scoping review, we assess the extent of the current body of evidence, the range of outcomes studied, and key study characteristics, examining the direction and strength of the relationship between redlining, neighborhood environments, and health as well as different methodological approaches. Overall, studies nearly universally report evidence of an association between redlining and health-relevant outcomes, although heterogeneity in study design precludes direct comparison of results. We critically consider evidence regarding HOLC’s causality and offer a conceptual framework for the relationship between redlining and present-day health. Finally, we point to key directions for future research to improve and broaden understanding of redlining’s enduring impact and translate findings into public health and planning practice.
Journal Article