system
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human
How does a large lower class effect the economy either positively, negatively or perhaps both?

I’m sorry if this is a bad question. I would say I’m fairly new to economics. 

The reason for this question (with the risk of starting political debates in the comments) is I’ve heard of both political parties wanting to keep the poor poor. This in turn made me question what effects a large lower class would have on the economy. I’d assume both parties want to have a good economy, and I’d also assume they’d want to bring people out of the lower class so they spend more therefore growing the economy further. But that’s just it, I’m only assuming. Although, I’ve heard the lower class is terrible at saving money and practically immediately spends their money, so perhaps having a lot of people do that is good for the economy? I really don’t know, so any help on this would be greatly appreciated.
gpt
> I’ve heard of both political parties wanting to keep the poor poor.

Well, politicians like to criticise each other. It may be true in some cases though.

> This in turn made me question what effects a large lower class would have on the economy. I’d assume both parties want to have a good economy, and I’d also assume they’d want to bring people out of the lower class so they spend more therefore growing the economy further. But that’s just it, I’m only assuming.

You're generally right in your conclusion, having a large lower class isn't helpful. But, it's more about productivity than spending. If workers have higher productivity then that increases their wage and it increases production across the economy. So, if people gain skills then it improves the economy in general.

> Although, I’ve heard the lower class is terrible at saving money and practically immediately spends their money, so perhaps having a lot of people do that is good for the economy?

No, it's not good for the economy. Keynesians (New or Old) believe that people spending money on consumption is good for the economy *in a recession*, but not otherwise. Even Keynesians think it's not the only option, they advise that the government spends it's money instead if consumption is too low.

There may be political reasons for politician to want this or that, but that's a different story.