> no economist has ever used the phrase "trickle down economics"
No, but plenty of economists have used the phrases "supply-side economics" and "Laffer Curve" to discuss (and advocate) the policies that "trickle down" was coined to disparage.
Right, and the fact that actual economists (including obviously Laffer who has a Stanford PhD in economics) have tried to pretend the curve is relevant to real world tax policy ought to be cause for laughter. Instead of course American politicians took him seriously and it's cause for misery for many of its poorest citizens. "Brilliant".
It should be taken as seriously as if a physics PhD tried to persuade your state that it should use solar power to convert lead into gold.
No, but plenty of economists have used the phrases "supply-side economics" and "Laffer Curve" to discuss (and advocate) the policies that "trickle down" was coined to disparage.