In sociology, the social disorganization theory is one of the most important theories developed by the Chicago School, related to ecological theories. The theory directly links crime rates to neighborhood ecological characteristics; a core principle of social disorganization theory is that place matters. In other words, a person's residential location is a substantial factor shaping the likelihood that that person will become involved in illegal activities. The theory suggests that, among determinants of a person's later illegal activity, residential location is as significant as or more significant than the person's individual characteristics (e.g., age, gender, or race). For example, the theory suggests that youths from disadvantaged neighborhoods participate in a subculture which approves of delinquency, and that these youths thus acquire criminality in this social and cultural setting.