Economic inequality has increased. It is on a solid trend to continue increasing. The USA, the most unequal of the richer countries, may set a new historical record for income inequality by 2030, and other countries are following similar though not identical trajectories.
So says Thomas Piketty in his book Capital in the 21st Century. It is a best-seller in France, where it was originally published, and now also in Britain and the USA, despite costing £30 and stretching to 640 pages.