Agnew (1999) argued that community level crime rates could best be understood as emanating from both differences in levels of social control and motivation for crime, particularly motivation rooted in strain. Agnew suggested that community characteristics could affect levels of strain by affecting thelikelihood of residents failing to achieve positively valued goals, losing positive stimuli, and experiencing negative or aversive stimuli. Increased levels of strain lead to increased rates of negative affect, such as anger and frustration. Neighborhoods with higher proportions of strained residents have a higher probability of those residents interacting with each other and leading to explosive situations. The extent to which strain leads to crime, however, is argued to be moderated by several variables, including levels of social control and social support/social capital within the community