Least understood, but the most important principle for anyone claiming “science” on their side—falsifiability. If it doesn’t make falsifiable predictions, it’s not science. For you to believe something is true, it should have predictive power, and it must be falsifiable. [11] I think macroeconomics, because it doesn’t make falsifiable predictions (which is the hallmark of science), has become corrupted. You never have a counterexample when studying the economy. You can never take the US economy and run two different experiments at the same time.
