There are two sources of error: Either you lack sufficient data, or you fail to take advantage of the data that you have.
Bryan CaplanThere is a small minority of well-educated people with relatively sensible views on economics, and an extremely tiny minority of economists with highly sensible views. Then there's everybody else. ... To win, a politician needs to please the median voter. It makes little difference if a few thousand economists think you a fool.
Bryan CaplanWorldviews are more a mental security blanket than a serious effort to understand the world
Bryan CaplanSociotropic voters with biased economic beliefs are more likely to produce severe political failures than are selfish voters with rational expectations.
Bryan Caplan