SOCIAL ISOLATION OF THE URBAN POOR:

We focus on the effects of race, class, and neighborhood on social isolation. Using data from households in Atlanta, Georgia, we compare poor and nonpoor African Americans to nonpoor whites on two types of social ties and the social resources inherent in those ties. We find that poverty has an important influence on the social resources available to African Americans in and outside of their household. Poor blacks are less likely than other blacks and nonpoor whites to live with another adult, to have even one person outside the household with whom they discuss important matters (a discussion partner), or to have a college-educated person in their discussion network. Higher neighborhood poverty reduces the size of the discussion network for whites and blacks and affects the probabilities of having any kind of social contacts. Important for the social isolation thesis is our finding that among African Americans, living in a very poor neighborhood increases social isolation and reduces access to social resources via one's network of close ties.     

Extrapolative simulation of neighborhood networks based on population spatial distribution: Do they predict crime?

Objectives

Previous criminological scholarship has posited that network ties among neighborhood residents may impact crime rates, but has done little to consider the specific ways in which network structure may enhance or inhibit criminal activity. A lack of data on social ties has arguably led to this state of affairs. We propose to avoid this limitation by demonstrating a novel approach of extrapolatively simulating network ties and constructing structural network measures to assess their effect on neighborhood crime rates.

Methods

We first spatially locate the households of a city into their constituent blocks. Then, we employ spatial interaction functions based on prior empirical work and simulate a network of social ties among these residents. From this simulated network, we compute network statistics that more appropriately capture the notions of cohesion and information diffusion that underlie theories of networks and crime.

Results

We show that these network statistics are robust predictors of the levels of crime in five separate cities (above standard controls) at the very micro geographic level of blocks and block groups.

Conclusions

We conclude by considering extensions of the approach that account for homophily in the formation of network ties.     

How social ties transcend class boundaries? Network variability as tool for exploring occupational homophily

The research on social network analysis established the existence of class homophily, the tendency that personal networks are homogeneous in the class sense, as one of the governing patterns. This is explained via two main mechanisms: choice homophily and induced homophily. But the literature focused less on the question how can class boundaries be transgressed and what are the channels of class heterophily. This paper explores class heterophily on Croatian data acquired through position generator, which measures social capital (resources captured in social relations) by exploring the range of different occupational positions which are accessible to an individual (extensity index). Network variability is thereby taken as proxy for class composition of personal networks. The paper concludes that that political participation and sociability enable cross-class ties, since this offers an opportunity to meet and befriend people from all walks of life; and that people on the middle of the social hierarchy have the most diverse social networks. The hypotheses that social mobility can represent a vehicle for class heterophily; and that class heterophily is more pronounced in smaller settlements, where society networks show more overlap between social circles; were confirmed only partially, and require further investigation. These findings concern class boundaries related to the notion of choice homophily. As for induced homophily, the paper concludes that here too the boundaries are not watertight, as cultural omnivores have a wider range of class contacts.     

Neighborhood Norms,Disadvantage, and Intimate Partner Violence Perpetration

Most theoretical treatments of intimate partner violence (IPV) focus on individual‐level processes. More recently, scholars have begun to examine the role of macrolevel factors. Results of that research indicate that social ties facilitate the diffusion of cultural norms—including tolerance of deviance/violence—across neighborhoods. Yet the influence of the neighborhood normative climate extends beyond norms regarding the use of violence, shaping cultural understanding about dating and the opposite sex. Using data from the Toledo Adolescent Relationships Study (TARS), the current investigation examines the multilevel association between dating norms and IPV perpetration among a large, diverse sample of adolescents and young adults. Results indicate that individuals’ liberal dating attitudes are associated with IPV perpetration. Furthermore, this effect varies across levels of neighborhood disadvantage.     

Good kids with ties to “deviant” peers: network strategies used by African American and Latino young men in violent neighborhoods

Adolescence can be a precarious time for young men of color growing in low-income neighborhoods with high rates of violence. For young men in those neighborhoods this may mean developing a suite of coping strategies that help them successfully navigate their neighborhood and school. Those strategies may include developing social ties with neighborhood residents that are engaged in “deviant” behavior. The aim of this paper study is to leverage the concept of resiliency to examine how social ties to the neighborhood-based “deviant” peers operate as protective factors. To answer this question we use qualitative data from African American and Latino boys and young men from neighborhoods in Chicago and Waukegan, IL who are between the ages of 14–25. Themes emerged that highlight short term positive impacts of social ties with “deviant” peers vs long term consequences. Implications for social work practice and future research are discussed.     

Neighborhoods in the Network Society the e-Neighbors study

This study examines whether the Internet is increasingly a part of everyday neighborhood interactions, and in what specific contexts Internet use affords the formation of local social ties. Studies of Internet and community have found that information and communication technologies provide new opportunities for social interaction, but that they may also increase privatism by isolating people in their homes. This paper argues that while the Internet may encourage communication across great distances, it may also facilitate interactions near the home. Unlike traditional community networking studies, which focus on bridging the digital divide, this study focuses on bridging the divide between the electronic and parochial realms. Detailed, longitudinal social network surveys were completed with the residents of four contrasting neighborhoods over a period of three years. Three of the four neighborhoods were provided with a neighborhood email discussion list and a neighborhood website. Hierarchical linear modeling (HLM) was used to model over time the number of strong and weak ties, emailed, met in-person, and talked to on the telephone. The neighborhood email lists were also analyzed for content. The results suggest that with experience using the Internet, the size of local social networks and email communication with local networks increases. The addition of a neighborhood email list further increases the number of weak neighborhood ties, but does not increase communication multiplexity. However, neighborhood effects reduce the influence of everyday Internet use, as well as the experimental intervention, in communities that lack the context to support local tie formation.     

Social network engineering and race in a police academy: A longitudinal analysis

This research examined an attempt to facilitate racial integration by populating squads (i.e., workgroups) in a police academy with mixes of recruits that reflected the racial demographics of the larger cohort. This was part of the social infrastructure of the academy. Additionally, a fixed seating arrangement was considered as a second element of academy infrastructure capable of impacting racial integration. We examined the consequences of these academy components over time with regard to race by combining ethnographic accounts with social network data collected throughout the academy and using a variety of network analytic tools. These consequences with regard to race were examined as a part of social network evolution. The academy's social arrangements did accelerate the creation of social knowledge of recruits about each other and the formation of friendship ties both within and between races. However, our results point to clear limitations to such infrastructural engineering and have implications for both recruitment to police academies and dealing with race. They shed light also on processes of homophily and group composition over time and have implications for studying social networks.     

Neighborhood conditions and social network turnover among older adults

Increasing research highlights heterogeneity in patterns of social network change, with growing evidence that these patterns are shaped in part by social structure. The role of social and structural neighborhood conditions in the addition and loss of kin and non-kin network members, however, has not been fully considered. In this paper, we argue that the residential neighborhood context can either facilitate or prevent the turnover of core network relationships in later life – a period of the life course characterized by heightened reliance on network ties and vulnerability to neighborhood conditions. Using longitudinal data from the National Social Life, Health, and Aging Project linked with data from the American Community Survey, we find that higher levels of neighborhood concentrated disadvantage are associated with the loss of older adults’ kin and non-kin network members over time. Higher levels of perceived neighborhood social interaction, however, are associated with higher rates of adding non-kin network members and lower rates of adding kin network members over time. We suggest that neighborhood conditions, including older adults’ perceptions of neighborhood social life, represent an underexplored influence on kin and non-kin social network dynamics, which could have implications for access to social resources later in the life course.     

Who is fighting with whom? How ethnic origin shapes friendship,dislike, and physical violence relations in German secondary schools

This study examines the role of ethnic background for friendship, dislike, and violence networks in secondary school. We analyze data on multiple networks from a large-scale study of more than 2500 seventh-graders in Germany. In addition to ethnic homophily in friendship networks, our results reveal a tendency among students to dislike ethnic outgroup members (ethnic heterophobia). However, students are more likely to engage in violence towards same-ethnic peers than outgroup members. This is partly due to the greater prevalence of violence among students who are close in the friendship network and students who spend time together outside of school. Moreover, schools marked by stronger ethnic homophily in friendships tend to display higher levels of ethnic heterophobia but exhibit higher levels of intra-ethnic rather than inter-ethnic violence.Keywords: Ethnic homophily; Violence; School networks; Multiplex networks; Exponential random graph models; Bullying     

Neighborhood disadvantage, network social capital, and depressive symptoms

Research on why neighborhood disadvantage matters for health focuses on the capacity of neighborhoods to regulate residents' behavior through informal social control. The authors extend this research by conducting a multilevel analysis of data from a 1995 telephone survey of 497 residents of 32 neighborhoods in a U.S. city. The authors find that network social capital mediates the contextual effect of neighborhood disadvantage on depressive symptoms and that health effects of network social capital persist when perceived neighborhood disorder, a standard indicator of low informal social control, is controlled for. The findings demonstrate the value of a conceptualization and measurement of network social capital that (1) considers ties that transcend neighborhood boundaries, (2) investigates health benefits of network social capital in the forms of closure and embedded support resources and range and embedded instrumental resources, and (3) uses network data on specific network members with strong and weak ties to respondents.     

Measuring ‘neighborhood’: Constructing network neighborhoods

This study attempts to measure neighborhood boundaries in a novel way by creating network neighborhoods based on the density of social ties among adolescents. We create valued matrices based on social ties and physical distance between adolescents in the county. We then perform factor analyses on these valued matrices to detect these network neighborhoods. The resulting network neighborhoods show considerable spatial contiguity. We assess the quality of these aggregations by comparing the degree of agreement among residents assigned to the same network neighborhood when assessing various characteristics of their “neighborhood”, along with traditional definitions of neighborhoods from Census aggregations. Our findings suggest that these network neighborhoods are a valuable approach for “neighborhood” aggregation.     

Diffusion in small worlds with homophily and social reinforcement: A theoretical model

We introduce homophily in a percolation model of word-of-mouth diffusion in social networks by reorganizing the nodes according to similarity in preferences for adoption of an innovation. Such preferences are described by a “minimum utility requirement” for an agent to adopt. We show that homophily removes the non-linear relation between preferences and diffusion in the standard percolation model with a high diffusion regime (“hit”) and a low diffusion regime (“flop”). Instead, in a model with perfect homophily, the final diffusion scales linearly with individual preferences: all agents who are willing to adopt, do adopt the innovation. We also investigate the combined effect of homophily and social reinforcement in diffusion. Results indicate that social reinforcement renders clustered networks more efficient in terms of diffusion size for network with strong homophily, while the opposite is true for networks without homophily. The simple structure of our model allows to disentangle the effect of social influence, homophily and the network structure on diffusion. However, the controllability of the theoretical structure comes at the expenses of the realism of the model. For this, we discuss possible extensions and empirical applications.     

Gender homophily from spatial behavior in a primary school: A sociometric study

We investigate gender homophily in the spatial proximity of children (6–12 years old) in a French primary school, using time-resolved data on face-to-face proximity recorded by means of wearable sensors. For strong ties, i.e., for pairs of children who interact more than a defined threshold, we find statistical evidence of gender preference that increases with grade. For weak ties, conversely, gender homophily is negatively correlated with grade for girls, and positively correlated with grade for boys. This different evolution with grade of weak and strong ties exposes a contrasted picture of gender homophily.     

The ecology of social networks in four urban neighborhoods

This paper re-examines the question of the social “fabric” of urban neighborhoods on the basis of residents' personal networks. Data were collected on the number, relative intimacy, and spatial distribution of social relationships among residents of two ethnically homogenous and two ethnically heterogenous neighborhoods in a medium-sized city in the midwestern United States. The analysis focused on spatial distributions and variables associated with differences in the average number or intimacy of neighborhood network ties. Herbert Gans had predicted that in heterogenous neighborhoods residential proximity would be a less important factor in social network formation than has previously been reported for socially homogeneous residential settings (especially Festinger et al. 1950). The results from this study indicated that the effects of proximity were more, rather than less, reflected in the spatial distribution of social relationships in the ethnically heterogenous neighborhoods. The face-block was identified as an important socio-spatial unit in all four neighborhoods.     

Norms,status and the dynamics of advice networks: A case study

The issue of the influence of norms on behavior is as old as sociology itself. This paper explores the effect of normative homophily (i.e. “sharing the same normative choices”) on the evolution of the advice network among lay judges in a courthouse. 0020 and 0025 social exchange theory suggests that members select advisors based on the status of the advisor. Additional research shows that members of an organization use similarities with others in ascribed, achieved or inherited characteristics, as well as other kinds of ties, to mitigate the potentially negative effects of this strong status rule. We elaborate and test these theories using data on advisor choice in the Commercial Court of Paris. We use a jurisprudential case about unfair competition (material and “moral” damages), a case that we submitted to all the judges of this court, to test the effect of normative homophily on the selection of advisors, controlling for status effects. Normative homophily is measured by the extent to which two judges are equally “punitive” in awarding damages to plaintiffs. Statistical analyses combine longitudinal advice network data collected among the judges with their normative dispositions. Contrary to what could be expected from conventional sociological theories, we find no pure effect of normative homophily on the choice of advisors. In this case, therefore, sharing the same norms and values does not have, by itself, a mitigating effect and does not contribute to the evolution of the network. We argue that status effects, conformity and alignments on positions of opinion leaders in controversies still provide the best insights into the relationship between norms, structure and behavior.     

Change in Covert Social Movement Networks: The ‘Inner Circle’ of the Provisional Irish Republican Army

In this paper, we contribute to both the growing body of literature on social movement networks and the growing body of literature on change in networks by exploring patterns and mechanisms of change within the network of the ‘inner circle’ of the Provisional Irish Republican Army. Specifically, we focus upon the period between 1969 (when it formed) and 1988 (the last point for which we have been able to gather good data). Our primary aims are substantive. We want to know how this network changed over time. In addition, however, our analysis identifies changes which other analysts might look for in their networks and offers methodological suggestions for those who, like us, find that their networks do not meet the assumptions of mainstream approaches to modelling network dynamics. There is a further dimension to the paper, however. We are studying a covert social movement network. This is a special type of movement network whose organisation and dynamics are predicted to vary from other movement networks. Some have suggested that they are inclined to be relatively static because the need for trust within them is so great and the risk to whatever they hold secret so considerable when new ties are formed that their members tend only to recruit within the pool of their pre-existing ties and actively seek to minimise recruitment and the formation of new ties. One of the aims of our paper was to determine whether and to what extent this is so.     

Social activity, social isolation and ethnicity

This paper explores the extent to which social activity in England and Wales varies by ethnic group and whether risks of social isolation are higher for some groups than others. It aims to enhance our understanding of social deprivation as a particular dimension of poverty and its variation by ethnicity. It also provides empirical evidence that informs discussions of social capital formation which focus on informal measures of participation, and amplifies our understanding of ethnic capital within groups. Estimating the characteristics associated with four measures of social activity together, using a multivariate probit model, the analysis identifies the extent to which ethnic group is associated with low participation on any given measure. Cross-equation correlations between observables within the model can additionally indicate an underlying propensity to social isolation. The paper concludes that there are distinctive patterns of social activity across ethnic groups, that social isolation is not coterminous with material deprivation, and that greater attention should be paid to social isolation as a particular dimension of deprivation that is unevenly distributed.     

RELIGIOUS HOMOPHILY IN A SECULAR COUNTRY: EVIDENCE FROM A VOTING GAME IN FRANCE

Homophily—the tendency individuals have to associate with similar‐others—is a powerful determinant of social networks. Yet research to date does not allow us to determine which dimension, e.g., ethnic, religious, gender, age, or class similarity, drives association. Tests demonstrating homophily are flawed by restricting the range of dimensions in the choice set. We introduce an experimental game in which we exogenously expose subjects to diverse partners to determine which dimension dominates. We find that in a socio‐demographically diverse district of Paris, despite expectations of secularization, religious similarity significantly predicts homophily. Moreover, we provide tentative evidence that religious homophily is taste‐based. (JEL C91, D03, D72, J71, Z12)     

The Enduring Significance of Racism: Discrimination and Delinquency Among Black American Youth

Prominent explanations of the overrepresentation of Black Americans in criminal justice statistics focus on the effects of neighborhood concentrated disadvantage, racial isolation, and social disorganization. We suggest that perceived personal discrimination is an important but frequently neglected complement to these factors. We test this hypothesis with longitudinal data on involvement in general and violent juvenile delinquency in a sample of Black youth from a variety of communities in 2 states. We examine the direct effects of concentrated disadvantage and racial isolation and the direct and mediating effects of social organization, support for violence, and personal discrimination. Consistent with our hypothesis, perceived personal discrimination has notable direct effects on both general and violent delinquency and is an important mediator between neighborhood structural conditions and offending; moreover, its effects exceed those associated with neighborhood conditions.