Is There a Correlation Between Death and Epidemiology?

Economics and medicine have something really important in common. Both disciplines cure about the answers to many questions where it's hard to do random ise experiments. The only way that you can get at questions of causation is a randomized trial, exactly. And so what economists have put an enormous amount of effort and thought into is developing models that use this non experimental data but might plausibly have a causal interpretation. We look for special settings that mimic a true randomization. And we call it a natural experiment. And that's really what you do, but you do it in medicine. Yes, correlation is not the same thing as causation. That statement its endemic in the way medical students are taught.