5 People Join the Middle-Class Every Second, Two Economists Say

The most important piece of news in recent weeks has nothing to do with Brexit or Brett Kavanaugh. It didn't make the front page and it did not cause social media to explode. It was a milestone that represented not a great leap forward, but hundreds of millions of steps in the right direction.

I am referring to the fact that, as of last week, more than half of the world is middle class.