An icon in the shape of a lightning bolt. Impact Link The Democratic Iowa caucuses are happening on Monday, and inequality has been one of the biggest issues in the nascent presidential campaign.

Since 1979, income growth has risen at a faster rate for the country’s richest 1% — while only modestly growing for the bottom 99%. In other words, the American inequality problem is very real.

The hottest curve in economics right now helps explain the rise of China, the rise of populism in Europe and the rise of Donald Trump. From a global perspective, income inequality has gone down. But ...

Leading economists share their favorite visualizations of inequality data. by Gretchen Gavett Whether we look between countries, companies, employees, or genders, economic inequality is one of today’s ...