Andrew Leigh is reporting on 1999 research showing that many high income earners wrongly place themselves in lower income deciles and many low income earners place themselves in a higher income decile than is justified by their actual income (also cross-posted at Core Economics).
In the past (p.16) I have used this data to suggest that some people who agree to survey propositions that above-average income earners pay more tax – as 41% of people are in the latest Essential Research survey – may get a nasty shock when they find the taxman raiding their wallets.
While I still think this is likely to be the case, asking people to put themselves into the correct income decile is a big ask. I would expect more general questions such as average, below average, or above average would yield more accurate results. Using data from the 2005 Australian Survey of Social Attitudes and comparing it to 2006 census household family income data I found that accuracy improved but significant discrepancies remained.
(The image is not entirely clear: the three horizontal axis labels are below median <$52,000; median $52,000-$77,999, and above median <$78,000) Continue reading “Actual versus perceived income”