The point being made is since this stuff is cyclical there is no data to suggest anything Trump did made a significant difference to the outcome of the cycle…i.e. that the cycle would have “collapsed” had not Trump been elected.
There’s zero evidence the corporate tax cut spurred economic growth…since the bulk of the corporate tax cuts went to stock buybacks as opposed to investment.
There is zero evidence the allowance for repatriation of funds into the US led to some marked increase in capital flows into the country.
Little evidence that any of the regulatory cuts Trump proposed led to an increase in new business activity.
Yes the economy kept growing…but the engine of future US growth…new capital expenditures…actually slowed in its growth rate after the tax cuts.
Venture capital outlays did spike in 2018, but quickly reverted to the mean in 2019.
The reason none of this happened, and why supporters of supply side still can’t understand why this happened, is because investors seek the best returns wherever they can get it.
Putting more money into their hands will not automatically result in them choosing investment activities that will spur real economic growth.
There are simply too many opportunities for them to acquire great returns via rent-seeking activities…and economic rent is a long term brake on economic growth, not a catalyst for more growth.
Until more people start understanding all the ways the wealthy can make money for themselves without actually spurring any kind of “tide that lifts all boats”, they will continue to vote for politicians whose goal is to make more and more of the pie available to the wealthy and less available to themselves.
This is why looking at other factors besides income growth…normalizing factors such as hours worked to attain that income growth, economic security surrounding that income growth, etc, are important.
If my income increased by 20% over two years, but I had to work twice as long and hard for that growth to happen as I did in the past…and if the security of future income growth is uncertain…these are not good things.
And this is what we see happening by and large in the world today…and have seen to a larger and larger degree over the past 40 years.