cognitive appraisal
3.This thesis mainly researches the graceful thought of the 2002 Nobel Prize for economics winner, Daniel Kahneman of the psychologist " —heuristics and biases " and prospect theory, his innovation method, theoretical foundation and knowledge background . On the comparing basis of the thing that forefathers have made and contributed, the thesis have given the further appraisal on philosophy and pointed out its great meaning of achievement and contribution in the field of philosophy and cognitive scientific.

