Four things to know:

Everyone from Bernie Sanders to Donald Trump is talking about inequality. But how does it affect our lives? Alan Berube and Alexandra Killewald explain.

According to Walter Scheidel, there are ways to significantly reduce inequality. Unfortunately, they all involve violent societal shocks.

America spends more on health care than any other country in the world. Why? Well, it’s complicated. But, innovation certainly plays a part.

You can thank Obama for your next Uber ride. But don’t get too comfortable:  here’s how the new health care proposal might affect the gig economy.