The fact is many people have less money in their pockets – and understandably, this has motivated people to take action against the status quo.
The following animation shows the change in income distribution in 20 major U.S. cities between 1970 and 2015.
The differences between 1970 and 2015 are intense. At first, each distribution is more bell-shaped, with the majority of people in a middle income bracket – and by 2015, those people are “pushed†out towards the extremes as they either get richer or poorer.
Source: http://www.visualcapitalist.com/animation-collapse-middle-class-20-major-u-s-cities/