Yes I have. Your observations are not universal but pretty common. The whole field is littered with a hodge-podge of cobbled-together numerical coincidences fet

Yes I have. Your observations are not universal but pretty common. The whole field is littered with a hodge-podge of cobbled-together numerical coincidences fetishised to the level of universal truths. It can be quite embarrassing when one sits down and tries to actually do defensible, provable mathematics. That is why I eventually migrated towards management (of the family firm, not coincidentally). Much of macroeconomics, at least most of it prior to the agent-based models now being produced and analysed, is notionalism.