... crime- and violence- prevention audiences, and those in the general public interested in neighborhood effects on violence This report also builds on a long-standing tradition of crime- prevention and ... change and reductions in youth violence Based on prior theory and literature on the relationship among economic development, community organization, and violence, we posited that the social connections ... poverty and its association with greater concentrations of delinquent peer groups (Elliott, Huizinga, and Menard, 1989; Farrington, 1989) Communi- Neighborhood Effects on Crime and Youth Violence...