The good news, then, is that the world in 2030 will be more prosperous. Indeed, the middle class could swell to over 5.5 billion people, predominantly in Asia. But it will also be significantly more unequal in individual countries. The European and North American middle class may not get much relief given current growth and policy trends. Rich people in those countries will continue to prosper, but that raises the question of whether such trends are politically and socially sustainable and, if not, what kinds of new politics and new policies will arise.

Read Here – Brookings