Vernacular middle class
The term middle class in more colloquial language use may refer to all those individuals who might at one point or another be identified as middle class, as they occupy neither extreme of the socio-economic strata. Most of those with households income between $40,000 and $95,000 identify as "middle class." The term can also be used to describe those at the actual center of the income strata, who may also be referred to as the middle-middle class. There are many different theories on the middle-middle class. The middle-middle class may be composed of those households with annual incomes of 80% to 120% of the national median household income. Persons in this income range could, in accordance to solely economic reasoning, be referred to as the American average. Such households would boast annual incomes ranging from $35,200 to $52,800, and thus be located in the middle of the income range.[13]
Some of these households, while actually being in the middle and thus sometimes referred to as being middle class, cannot, however, afford the middle class lifestyle.[9] Yet another definition states that the statistical middle class includes all those households with income ranging from $25,000 to $100,000.[1] This is, however, a very vague definition, as it includes persons from all but the lowest quintile. Using this definition creates a class so economically fragmented that it would lump together those who are struggling to make ends meet with two incomes and those who are able to live the iconic middle class lifestyle with just one income and are highly educated.
Weberian definition
Some modern theories of political economy consider a large middle class to be a beneficial, stabilizing influence on society, because it has neither the possibly explosive revolutionary tendencies of the lower class, nor the absolutist tendencies of an entrenched upper class. Most sociological definitions of middle class follow Max Weber. Here the middle class is defined as consisting of professionals or business owners who share a culture of domesticity and sub-urbanity and a level of relative security against social crisis, in the form of socially desired skill or wealth. Thus the theory on the middle class by Max Weber can be cited as one that supports the notion of the middle class being composed of a quasi-elite of professionals and managers, who are largely immune to economic downturns and trends such as out-sourcing which affect the statistical middle class.[10]