Olle Hammar et al write in Global Earnings Inequality, 1970–2015:
Our main finding is that global earnings inequality has declined, primarily during the 2000s, when the global Gini coefficient dropped nearly 10 points and the earnings share of the world’s poorest half doubled.
Today, data shows that the gap between the richest and the poorest has never been wider.
What's true? Is the popular conception that inequality as measured by metrics such as the Gini-index rises false as Hammar claims or is it true?