system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why don't trickle down economics work?

It just seems to work so well in theory, and family members swear it's the only thing that will help our current economy. Why is trickle down, or Reaganomics widely considered to be a non-working, economic fallacy?
gpt
When wealthier people get more money, they don't necessarily have much incentive to spend more since they already have their needs met, especially, if there isn't increased demand and they can easily use it to buy products overseas or expand there.  Cutting taxes and social safety-nets hasn't really worked historically.

If you subsidize less wealthy individuals, they are far more likely to spend, and spend locally.  If they've been making due with a bad appliance or lack some new piece of technology and get an influx of cash, they'll go out and buy something.  This increases demand, putting money into company pockets, and encouraging them to expand and hire more people since people will buy more products.