How to Perceive and Cope with Uncertainty: A Line of Demarcation in Methodology of Economics
Since D. Ricardo's theory came into being, the research of economic theory has only been confined to the consideration of "rational man" and to the idealistic and certain economic activities under a total knowledge hypothesis. Although the way of expelling uncertainty is far away from real-life economy and is confronted with constant criticism from non-mainstream economists. Main -stream economists didn't attached importance to uncertainty until J. M. Keynes' Revolution. F. H. Knight's criticism ( especially from J. M. Keynes) about the post-D. Rocardo main -stream economy methodology and his thought that economy activities are dominated by uncertainty and undecisiveness take a conspicuous place in modern economic theory. In reality, how to perceive and deal with uncertainty constitutes a striking demarcation of economy methodology.