You are right though half of the people you quote are in the hedge fund industry right ?I'd like to find (and I would have loved that the Mr Davenport would have done this ...) some statistical fact about this. Example: sample SP 500, Nasdaq and Dow Jones firms.Proportion of CEO who have done "scientific or quantitative background at a high level" (for example computer science, physics, mathematics, chemistry, engineering, econometrics, finance, etc...). High level is defined as >=Master degree. Soft sciences such as humanities (as example) and some soft economy and finance are not hard science.Among those "qualified" CEO those who have built their own firm are out of the game (example facebook, google, amazon, ...).According to you what would be the base rate ? 20%, 10%, 5%, 1%?