Forget the old fashioned idea of upperclass, middle-class and lower-class, Ray Dalio, founder of world renowned hedge fund Bridgewater, suggests that the Fed should act as if there are two distinct economies, the upper 40% of the population and the bottom 60%.

See full story: http://www.businessinsider.com/ray-dalio-warns-of-struggles-for-bottom-half-of-us-economy-2017-10