Yes it really depends on what you are trying to explore. In this article they even excluded realized capital-gains from their income calculations which is going to change the profile considerably of who is included (wage earners I guess?).
I wonder how much overlap there even is between the top .01% Wealth households and .01% income without capital gains.
I completely agree here. People claiming tens of millions in regular non-capital gains income are a completely different group from the “real” 0.01% who most likely use capital gains for almost all of it.
The “income” 0.01% are going to be people like lottery winners and are wholely unrepresentative.
Yeah the cutoffs were 31M in non capital gains income (2015) vs 371M assets (2012). After income taxes they'd only get around half, ~16M, which is about 4.3% of 371M. So .01% non-cap gains income is maybe keeping pace on average with the .01% wealth's passive gains.
I wonder how much overlap there even is between the top .01% Wealth households and .01% income without capital gains.