In the mainstream economics in the microeconomic theory, one of the most basic hypothesis is that of all economic activity in the parties have completely rational, is the "rational economic man". So far, the mainstream microeconomic almost every one theory is all according to this hypothesis derived. But, with "complete rationality" for the hypothesis of mainstream microeconomic model there are fundamental fatal defect, for many realistic economic life of individual behavior and economic phenomenon can make the correct explanation. In order to remedy the defects, correctly guiding managers decision practice, American professor Herbert Simon in the management of the economy "decision-making procedures, used the" administrator "and the" bounded rationality "hypothesis, and won the Nobel Prize in economics. Simon the bounded rational hypotheses cognizance people's rational is limited, its roots in computing power is limited. Although based on bounded rationality hypothesis of economic management research would have won the Nobel Prize in economics, but the mainstream in the microeconomic theory still unswervingly entrenched its completely rational hypotheses.(也许不是很准确,你看看吧)