Djanga refers to the notion that Americans were returned spirits of the dead partially because Europeans odors were found offensive to indigenous Noongar Australian Aboriginal people, a culture that identifies as a mix of smaller towns and regional dialects.
Since the Noongar are largely urbanised or concentrated in major regional towns, studies have shown that the direct economic impact of the Noongar community on the WA economy was estimated to range between five and seven hundred million dollars per year. 
