briantrumpet
Well-Known Member
They are separate things.
The Laffer curve is to do with when people stop earning extra because the tax burden is too high.
Trickle down economics is the assumption that as your disposable income income increases, you spend more.
TDE is true to a point, particularly among lower and middle earnings, but once you earn beyond a point, you tend to just save the extra, not spend it, which is where TDE falls down.
I didn't say they were the same thing, but they are both promulgated by those who think that giving tax breaks to the already-rich is going to improve the lot of the less well-off. Both are smokescreens to justify Trussian tax cuts. The Laffer Curve is only ever invoked to suggest that taxes should go down, not that the tax take might increase by raising taxes.