I got to the railroad by accident. I was a stupid kid that wanted to be a chemist. So I took chemistry, sort of good at it.
After college I had a wife and kid and looked for a job in chemistry. They wanted a Ph.D. There was no way for me to get that.
So for years I worked for the railroad in sales and marketing and going to college at night to get that economics degree because the railroad did not give a hoot about chemistry.
Bottom line is after having various courses at Louisville, North Florida and Johns Hopkins I can actually understand economics and what in the United States drives our economy. On top of that after 32 years of dealing with my customers and their customers I can just about tell you what will kill an economy. Go no farther than Bernie Sanders. He is a Marxist. He wants the U.S. to follow the same line as Venezuela. Socialism does not work because humans are not bees or ants, we are selfish.
In my view (over simplified) the three large views on economics is Smiths "Wealth of Nations"; Keynesian economic theory and Marxism. Smiths is pure capitalism, Keynesian theory is the government sets the standards and tries to steer it along with capitalists ideas driving that; whereas, Marxism is a pure state commanded economy. The U.S. since World War II have been closer to the Keynesian model. But after ever crisis they, the government, will get more heavy handed and try to control too much. That is why Trump could effectively change many thing so quickly by simply removing the executive commanded regulations put in place by the Presidents before him who managed things by decree instead of law.
I have never figured out why the wealthy want Marxism or socialism. Pure Marxism would wipe them out economically along with killing them. Folks forget that 110,000,000 people were KILLED in the 20th Century by the communist. Most people will fight to keep a little dignity and some of their property. The communist wanted total control of everything. By having total control of people, production et.al. they were powerful. The communist bosses were far more powerful and wealthy than any capitalist in the free world. But people seek power and the ultimate power in the 20th Century were held by guys like Stalin and Mao Tse Tung. No American ever had that kind of power.
Why the hollywood elites want to damn capitalism is beyond me. But Karl Marx never lived to see the evil he put on this earth. May he burn in hell. His ideas on economics were not economic, just brutality.