I taught economics at the college level and have been a long time amatuer student of it. But having a background in economics and/or finance doesn’t make anyone omniscient about the economy. I attended a speech by liberal economist John Kenneth Galbraith and he quipped, “Economists predict the future, not because they know what will happen, but because they are asked.” Most economists’ opinions are shaped by their beliefs and biases like everyone else. If economists really understood the economy, they personally would all be rich. Saying otherwise is like saying every teacher of literature is necessarily a great writer or that every theologian is going to Heaven. Economists explain the economy in hindsight, just like those two fields explain their areas.
There is a lot of misunderstanding about trickle down theory. You can debate whether it works or not, but the intent is about opportunity, not outcomes. There is a segment of the poor who will stay poor no matter what. You can give them handouts and they will still stay poor. You can give them opportunity and they will not take advantage of it.
There is another segment who are not wanting handouts, but rather are looking for opportunities. If the people with money have the same amount of money they always have had, they will spend what they are spending and the opportunities remain the same. If they get more money, they spend/invest more money and that creates opportunity. Ultimately the success of a capitalist economy is based on consumer and investor confidence and the resulting increased desire to spend and invest.
It is a misconception to link trickle down to charity or taxes. That is saying trickle down is about handouts and it’s not. I’m an independent management consultant and solid middle class. My business does better when the stock market is going up and the owners and leaders of big companies are doing well. When there is downturn, I do worse. So it works for me, not because anyone gives me anything, but because I get more opportunities.
So the argument here is not really about trickle down economics. It is about capitalism versus socialism. Are people responsible for their own success or is the government and charities responsible for their welfare? Whichever you choose, fine, but only capitalism can create lasting wealth in the overall economy. Socialism can create equality and order in the short run and can be useful in stabilizing disintegrating economies. But it is a stop-gap. It cannot create prosperity long term because it is forcibly taking from the rich to give to the poor and at some point, you run out of other people’s money to spend.
To my mind, and this is backed up in my life and business, the economy is measured by: Can people with useful skills, the will to work hard and talent to work smart, find appropriate employment? The hard-core poor are what charity is for. Charity from us all, not just the rich. People who have passed up getting useful skill for majoring in Basket Weaving, people who aren’t ready to work hard, people who can’t work smart need to get used to making what little their economic productivity can provide them.