Most of these aren't really unsolved problems though, many have clear explanations, or are simply based on false assumptions (like the dividend puzzle). Sure,

Most of these aren't really unsolved problems though, many have clear explanations, or are simply based on false assumptions (like the dividend puzzle). Sure, some of them are difficult to have clear empirical answers and quantification of the effect impact due to huge amounts of confounding variables, but that doesn't mean the explanation isn't clear and obvious.