The Long Arm of Poverty: Extended and Relational Geographies of Child Victimization and Neighborhood Violence Exposures

Current models of neighborhood effects on victimization predominantly assume that residential neighborhoods function independent of their surroundings. Yet, a surprising proportion of violence occurs outside of victims’ residential neighborhoods. The current study extends on recent advances in spatial dynamics and neighborhood effects to explore the importance of different geographic scales and relational exposures to poverty for child violent victimization. We examine longitudinal data on over 4400 low-income children from high poverty neighborhoods in five cities, who participated in the Moving to Opportunity randomized intervention. The results suggest that surrounding poverty matters for child victimization beyond the effect of residential poverty. Moreover, moving farther from extreme poverty also seems to buffer against victimization and to amplify the benefits of moving to improved extended (residential and surrounding) neighborhoods. All the children in the study, but especially boys older than 10 years of age, seemed to be affected by the long arm of poverty.     

Does neighborhood watch reduce crime? A systematic review and meta-analysis

Neighborhood watch grew out of a movement in the USA during the late 1960s that promoted greater involvement of citizens in the prevention of crime. Recent estimates suggest that over a quarter of the UK population and over 40% of the US population live in areas covered by neighborhood watch schemes. The current paper presents the results of a recent systematic review of evaluations of neighborhood watch. The main findings of the narrative review were that about half of the schemes evaluated showed that neighborhood watch was effective in reducing crime, with most of the other evaluations having uncertain effects. The main findings of the meta-analysis were that 15 of the 18 studies provided evidence that neighborhood watch reduced crime. While the results of the review are encouraging, it was concluded that more high-quality research needs to be done to help explain why study variations exist.

The Cartography of Opportunity: Spatial Data Science for Equitable Urban Policy

As evidence of the contextual effects of place upon individual outcomes has become increasingly solid over time, so too have urban policies and programs designed to connect underserved people with access to spatial opportunity. To this end, many attempts have been made to quantify the geography of opportunity and quite literally plot it on a map by combining evidence from studies on neighborhood effects with spatial data resources and geographic information systems (GIS) technology. Recently, these opportunity maps have not only become increasingly common but their preparation has been encouraged and facilitated by the U.S. Department of Housing and Urban Development. A closer look at the foundations and methods that underlie these exercises offers important lessons I examine the practice of opportunity mapping from both theoretical and methodological perspectives, highlighting several weaknesses of the common methods. Following this, I outline a theoretical framework based on Galster’s categorization of the mechanisms of neighborhood effects. Using data from the Baltimore metropolitan region, I use confirmatory factor analysis to specify a measurement model that verifies the validity of the proposed theoretical framework. The model provides estimates of four latent variables conceived as the essential dimensions of spatial opportunity: social-interactive, environmental, geographic, and institutional. Finally, I develop a neighborhood typology using unsupervised machine learning applied to the four dimensions of opportunity. Results suggest that opportunity mapping can be improved substantially through a better connection to the empirical literature on neighborhood effects, a multivariate statistical framework, and more direct relevance to public policy interventions.     

Subsidized Housing and Residential Trajectories: An Application of Matched Sequence Analysis

Scholars have long debated the relative merits of site-based, subsidized housing owned and operated by a public entity or by the private sector. This is the first study to classify long-term residential trajectories of nationally representative low-income households in the United States by their initial assisted housing status. We employ a matched sequence analysis of neighborhood poverty and racial trajectories of low-income households in the Panel Study of Income Dynamics who formed during 1988–1992. Among households carefully matched by their demographic and economic attributes, we find that those first forming households in public housing spend much longer durations over the subsequent 20 years in poorer, minority dominant neighborhoods than similar households first forming in market-rate housing do. In contrast, forming a household in private site-based subsidized housing is associated with superior neighborhood socioeconomic (but not desegregated racial composition) trajectories compared with starting in market-rate housing. Implications for housing policy are discussed.     

Do Neighborhood Effects on Low-Income Minority Children Depend on Their Age? Evidence From a Public Housing Natural Experiment

We analyze data from a natural experiment involving Denver public housing that quasirandomly assigns low-income Latino and African American youth to neighborhoods. Intent-to-treat and treatment-on-treated models reveal substantial effects of neighborhood socioeconomic status, ethnicity, and safety domains on youth and young adult educational, employment, and fertility outcomes. Effects are contingent on when a youth was first assigned to public housing and the neighborhood characteristic in question. Benefits from neighbors of higher occupational prestige are stronger if a child begins experiencing them at a younger age, whereas negative consequences of neighborhood crime are only manifested for teens. Neighborhood effect sizes apparently depend on the interaction among exposure duration, disruption effects of mobility, and developmental stage-specific differences in vulnerability to the given neighborhood effect mechanism operative. Our results hold powerful and provocative implications for where assisted housing should be developed and how applicants should be assigned to neighborhoods.     

社区居民委员会与业主委员会的权利结构及其在北京市政策执行中的演化

在城市社区中,居民委员会和业主委员会是两个非常重要的自治组织,这两个理论上看似相辅相成的自治组织在现实中却关系复杂,复杂关系的背后实际上是政府的政策在左右。本文通过对北京市社区中居民委员会和业主委员会相关政策的研究,特别是对政府政策取向以及相关组织的利益关系的剖析,发现政府厚此薄彼的政策取向以及控制寻租机会是问题的核心,解决问题的关键在于政策设计应以尊重权利为要义,在具体的制度安排上应以控制腐败、防止附加性政策为核心,在具体行政活动中应以依法行政为基本操守,唯其如此才能防止魔鬼隐藏在政策细节中作祟。