3. ECONOMIC EFFECTS OF INTERVENTIONS TO REDUCE INTERPERSONAL VIOLENCEincluding aggression replacement training and foster care treatment, withbenefit to cost ratios <strong>of</strong> 90 and 65, respectively. <strong>The</strong>y found that a wide range <strong>of</strong>potential <strong>int</strong>erventions targeting non-<strong>of</strong>fenders, juvenile <strong>of</strong>fenders, and adult<strong>of</strong>fenders benefited society from the cost-benefit perspective and, once benefitswere subtracted from costs, resulted in cost per QALY ratios below zero.33
THE ECONOMIC DIMENSIONS OF INTERPERSONAL VIOLENCE4. Effects <strong>of</strong> <strong>economic</strong> factorsand policies on<strong><strong>int</strong>erpersonal</strong> <strong>violence</strong>This chapter discusses findings related to the effects <strong>of</strong> <strong>economic</strong> conditions andpolicies on <strong><strong>int</strong>erpersonal</strong> <strong>violence</strong>. As described in the <strong>int</strong>roductory conceptualframework, society- and community-level risk factors for <strong><strong>int</strong>erpersonal</strong> <strong>violence</strong>include <strong>economic</strong> inequality, poverty, weak <strong>economic</strong> safety nets andunemployment. In addition, these can also be influenced by <strong><strong>int</strong>erpersonal</strong><strong>violence</strong>. For example, increasing levels <strong>of</strong> <strong>violence</strong> may contribute to social andgeographic distributions <strong>of</strong> investments that could leave the poor worse <strong>of</strong>f.Thus, it is <strong>of</strong>ten difficult to tease out the cause and effect relationships <strong>of</strong> thesevariables in the available literature.<strong>The</strong> relationship between <strong>economic</strong> conditions and <strong><strong>int</strong>erpersonal</strong> <strong>violence</strong> hasbeen the focus <strong>of</strong> extensive study in fields such as sociology, criminology,macro<strong>economic</strong>s and development studies, and it was not possible to summarizeall such information in this report. Instead, this report focuses upon the morelimited contemporary public health and health <strong>economic</strong> literature dealing withthis relationship (Table 8).Table 8Selected studies exploring the relationship between <strong>economic</strong> factorsand <strong><strong>int</strong>erpersonal</strong> <strong>violence</strong>Study Backgroud risk factors Type(s) <strong>of</strong> <strong><strong>int</strong>erpersonal</strong> <strong>violence</strong>Peer reviewed articles and government studiesBlau & Blau (1982) Economic inequality, poverty, race (black) Stranger sexual assault, other violent crimeButchart & Engstrom(2002)Devine, Sheley &Smith (1988)Engstrom,Diderichsen &Laflamme (2002)Fajnzylber, Lederman& Loayza (2000)Fiala & LaFree(1988)Economic development, income inequality,female labour force participationHomicide in 0-24 year age-group – 61countriesUnemployment, inflation, prison rate, relief Homicide, robbery, burglary in US 1948-1985Family <strong>of</strong> origin social and <strong>economic</strong> statusAverage income, income inequalityInequality, unemployment, female status,female labour force participationHomicide and non-fatal violent injuriesinvolving hospitalisationHomicide and robbery rates in countriesChild homicideKaplan et al. (1996) Income inequality Homicide (all mortality) in USKawachi, Kennedy &Wilkinson (1999)Income inequalityKennedy et al. (1998) Income inequalityHomicide, assault, robbery (and propertycrime) in USHomicide, firearm crime, robbery, assault inUS34