A new study finds that ignorance of one's relative standing in the income distribution is not unique to Americans, and looks at the policy consequences of such misperceptions.
The terms high-class and low-class have such strong negative connotations that everyone seeks to be perceived as middle class. What income bracket are you in? The research says it'll probably be a surprise. Data for income bracket is the USA: http://taxpolicycenter.org/numbers/displayatab.cfm?DocID=2879