This paper summarizes the main findings of a recent literature that has constructed top income shares time series over the long-run for more than 20 countries using income tax statistics. Top incomes represent a small share of the population but a very significant share of total income and total...

The top 1 percent income share has more than doubled in the United States over the last thirty years, drawing much public attention in recent years. While other English speaking countries have also experienced sharp increases in the top 1 percent income share, many high‐income countries such...

Based on pioneering research on top incomes, this volume uses data from income tax records in 10 OECD countries over the past century to cast new light on the dramatic changes that have taken place among top earners. The volume provides rich material for exploring inequality, taxation, the...