“…First, they assess the distribution of alcohol‐ and drug‐related problems across geographic and social space enabling the identification of those human communities which most suffer from these problems. Studies of the distributions of incidence and prevalence of AOD problems over space and time (e.g., intimate partner violence, Cunradi et al., ; child abuse and neglect, Freisthler et al., ; motor vehicle crashes, Ponicki et al., ; violent assaults, Mair et al., ; methamphetamine abuse, Gruenewald et al., ; prescription opioid abuse, Cerda et al., ) demonstrate the need for rational allocation of scarce prevention and treatment resources. Second, they focus research efforts on elucidating the micro‐ecological human social mechanisms that accelerate risks for AOD problems.…”