@DB
Interesting analysis. Thanks for posting it. (I’ve been out all day). So, when personal tax rates went from 70% to 28%, tax receipts went from $600B in 1981 to $1T (round numbers) in 1989 and increase of $400B. Given that this is a much more modest decrease, it’ll be interesting to see what happens with receipts with this tax decrease (especially the large corporate tax cut). I remain skeptical.
@DB @ConcernedI looked at the article, and tried to look at the link to the source data (got a 404). I wasn't able to determine if these were real (inflation adjusted) or raw numbers. There was a whole lot of inflation in the early 80's, so if those are not real numbers we may have actually seen a decrease in real tax receipts (I don't believe this, just pointing out that we need to be careful making comparisons).
I'd also point out what most conservatives miss about the Laffer curve. It DOES NOT imply that tax cuts increase tax revenue. It does imply that AT CERTAIN TAX LEVELS cuts increase tax revenue (and conversely that at certain tax levels rate increases increase tax revenue). Therefore, what happened when top rates went from 70 to 28% does not provide any indication of what will happen if top rates go from 39% to something lower.
We also need to keep in mind that rate changes are not the only things that affect(ed) tax revenues. For example, during the 80's the Boomers were starting to enter their most productive and high paying parts of their careers. Could this be the real reason tax revenues increased, and would have increased regardless of any changes in tax levels? We'll never know -- economics is not a science. [That's just one example, BTW, a couple, perhaps even a few, other things also happened in the 80's]