Definition
Social disorganisation theory holds that crime concentrates in communities whose capacity for self-regulation is weakened by structural conditions — economic disadvantage, residential mobility, and population heterogeneity — that disrupt the shared values and dense networks through which residents would otherwise enforce common standards.
Clifford Shaw and Henry McKay developed the theory in interwar Chicago, mapping juvenile delinquency across decades and discovering that high-crime areas persisted even as the ethnic composition of their residents turned over. The implication was that crime was a property of places more than peoples — a finding that displaced biological and racial explanations of the time.
Why it matters
How it works
Empirically, researchers measure neighbourhood characteristics — disadvantage, mobility, heterogeneity, family structure — and test their association with crime rates while controlling for individual-level variables. The contemporary revival of the theory, led by Robert Sampson and colleagues, foregrounds collective efficacy: the combination of social cohesion and the shared expectation that neighbours will act on observed problems.
Critics note that the original framework treated disadvantaged communities as deficient rather than constrained, ignored the role of macro-economic forces in producing local conditions, and risked stigmatising the places it studied. The strongest contemporary versions place neighbourhood dynamics inside larger political-economic structures that produce and reproduce concentrated disadvantage.