Here is an article I found worth my time to read. An excerpt from the article is chilling.
“That economic stratification may lead to collapse on its own… Under this scenario, elites push society toward instability and eventual collapse by hoarding huge quantities of wealth and resources, and leaving little or none for commoners who vastly outnumber them yet support them with labour. Eventually, the working population crashes because the portion of wealth allocated to them is not enough, followed by collapse of the elites due to the absence of labour.”
Enjoy! http://www.bbc.com/future/story/20170418-how-western-civilisation-could-collapse
The sad part to me is that this is a story that has repeated itself multiples in our history, yet we are not smart enough to learn from it. Or perhaps we do not have the gumption to push against the greedy hoarders and those more interested in the current profit.