In 2007, I published a paper with Tony Atkinson that looked at how the income share of top groups (eg. the richest 1%) had changed over time. The analysis is based on crunching tax data, national accounts figures, and population statistics.
We’ve now updated the analysis with the latest taxation data, which covers the year 2008-09. Unsurprisingly, it shows a slight downtick for that year, which is mostly due to a fall in the non-salary incomes of the rich.
For anyone researching or writing about inequality, the full spreadsheet is available at this link. There is also a writeup by Markus Mannheim in the Canberra Times, and you can podcast my chat today on ABC Radio National’s Life Matters with the splendid Richard Aedy.