Considerable Research Has Focused on the Impact That Urban Contexts Have on Crime Rates
Investigating the influence of neighborhood context on levels of violence in Medellín and Chicago Magdalena Cerdá, MPH DrPH 1 Jeffrey Morenoff, PhD 2 1Department of Epidemiology, School of Public Health, The University of Michigan 2Department of Sociology, The University of Michigan 1 Abstract Limited information is available about the ways communities impact violence in developing countries. We tested the association between neighborhood characteristics and violence in Medellín, Colombia, and Chicago, USA, using a household survey of 2494 respondents in 166 neighborhoods in Medellín, and 3094 respondents in 342 neighborhoods in Chicago. In Chicago, poverty and lower collective efficacy are predictive of higher perceptions of violence and rates of homicide. A closer examination by neighborhood poverty however, reveals that levels of perceived violence only differ by levels of collective efficacy in mid-low-poverty neighborhoods. In Medellín, collective efficacy is more pronounced in contexts of high disadvantage, and it is associated, on average, with higher levels of perceived violence and homicide. In both cities, higher levels of collective efficacy in high-poverty neighborhoods are associated with higher homicide. The study questions the notion of “social organization” as a homogeneously beneficial process across cultural and socioeconomic contexts. 2 Introduction Urban sociological research has highlighted the pathways through which the socioeconomic environment can affect the systematic distribution of levels of violence. One of the most promising emerging theories linking community processes and crime is collective efficacy theory. This theory critically builds upon social disorganization theory and calls attention to the role that social trust and norms of reciprocity, along with purposive social control, can play as mediators in the association between material deprivation and crime (Galea et al.
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