I don't know where you're looking, but if you go to the first result for trick-down economics, the Wikipedia page, within the first few lines it mentions how the term is used, and how it was created by detractors of supply-side economics. It's never been a real policy.

    "the term 'trickle-down economics' was popularized by Democrats in the US to derogate Reaganomics"

    "not to be confused with trickle-down economics"

As for whether supply-side economics actually works, to say it "hasn't panned out" I think, is really oversimplifying. Has capitalism (efficient markets but also environmental decay) worked? Has socialism (universal healthcare but also the military) worked? It depends on who your asking and in what regard. In some ways yes and in other ways no. The category is too broad.

Also, just as important as how much we tax is where we tax. Carbon tax (very good) vs stamp duty tax (very bad). Competent policy often allows you to have your cake (supporting government services) and eat it too (not sacrificing growth).

I mean that's definitely cherry picking portions of the wiki. Both of the articles refer to each other much more than those examples, not that that really matters.

Plus the Supply Side Economics wiki article, right below the "Not to be confused with trickle-down economics", contains a huge box pointing out the many issues with the article, including but not limited to "Needs more academic or scholarly research, rather than newspaper articles." and "contains weasel words: vague phrasing that often accompanies biased or unverifiable information."

I also was trying to google it and saw what the other commenter saw btw. The AI overview on Google says "Yes, they refer to the same core economic concept, but supply-side economics is the formal, academic term, while trickle-down economics is a popular and critical label for it. Both argue that cutting taxes and reducing rules for businesses and rich people will help the whole economy". And it references: https://mattbruenig.com/2013/01/07/on-trickle-down-economics... https://en.wikipedia.org/wiki/Trickle-down_economics https://study.com/learn/lesson/video/demand-side-vs-supply-s... https://www.annenbergclassroom.org/glossary_term/supply-side...

What is the difference between how trickle-down economics is portrayed vs. the actual ideas of supply-side economics? You have to specify how / in what way it's a strawman