orrk
However, I don’t think that the theory has been debunked in the way you are describing
sure, you have listed a few papers, and having skimmed some of them I’m a bit iffy to their relevance mainly as to what numbers they take as indicators what of and at least one had an issue where one of the more prominent indicators they picked is heavily influenced by other outside activity more so than the taxes.
but here’s the thing, if it was just wrong all the time, it would have predictive power, the fact that it sometimes seems to be correct, and other times it being counter to predictions or being mostly non changing means that it’s not a useful model, and a useless model is trash, and honestly I’m highly skeptical of supply side economics, it has produced relatively little in terms of economic stability, nor sustainability.
personally, I’m more inclined towards Post-Keynesian demand side economics, and unlike supply side economics, they have actually made predictive models that actually have predictive power
ok, so scientifically speaking “proof” is a mathematical concept only, physics doesn’t prove shit, chemistry doesn’t prove shit, no other science proves shit.
But economics, like every other science out there makes models, these models when applied to certain circumstances make predictions, we test these models by testing the predictions they make.
The more accurate the prediction the better and more relevant the model, the issue that economics has is that many people instead of looking at the actual science, take the fictional work and claim it reality, mainly because they believe some propaganda commissioned by really wealthy people, to keep their wealth. the Laffer curve is one such example because it allows rich people to invest into lower taxes and increased privatization.
The Laffer curve isn’t bad because Regan used it, it’s bad because it has a track record of not having any predictive capability.
Also, there exist mechanisms by what we punish tax evasion, taking the likelihood of tax evasion into account for the purpose of setting tax rates is self-defeating, in the assumption that any persons want the maximum amount of money for themselves would always try to evade taxes, no mater what the tax rate is.
no, it is propaganda. I mean, “Taxing at 100% also brings no tax revenue” is already a stupid statement, and is Tautologically contradictory, even more so in a progressive tax system (please look up what the even means, statistically believing in the Laffer curve also comes with a ton of other misconceptions about financial policy)
also some history to the Laffer curve, it is an unproven theory that basically always get trotted out by the wealthy to argue for lowering taxes, tho it ironically has been shown to have no predictive power whatsoever.