[cal5k]

Actually, the problem with economics is that it is not enough like psychology. Psychologists generally perform experiments before concocting theories (or at least they conduct them to confirm or invalidate them), whereas economists generally concoct theories and attempt to fit those theories to data that has not been acquired through experimentation.

[Gogmagog]

Economics experiments always seem to tell you exactly how Graduate students in an Ivy-league Econ 503 class would behave in any situation. :P