Mostly from reading and listening to educated people talk on the subject. My high school course was completely unhelpful. It would only accept the most orthodox of capitalist views. So much as daring to imply the government do anything was shunned. The only useful thing it taught me was a bit about the Federal Reserve banking system.>>82886>I never really got the point of the story but I did find it interesting.
It's a simple story about money velocity. The point is that money gets continuously recycled throughout the economy. It's most helpful to think about the same situation during a depression: rather than people spending money around, they're more likely to save what they've earned, which slows down the economy. Following the one story, instead of the hotel owner calling a plumber, they put their money into a bank, so plumber never gets anything and neither does the fish merchant.