I think you focus to much on the individual candidate themselves. When trying to understand what a president will do after an election, look at the kind of people who he picks as his advisers.

If president takes mainstream economists as his economy advisers instead of a bunch of bankers, that says something that might be more important than a quiz on economic knowledge. A president isn't going to write his own economic policy anyway. It's the job of the president to pick the right expert to write the economic policy.