The Complexity and the Modeling of Social-economic Systems

Many researchers now focus on the theory of complexity, which still does not have a uniform definition for its lack of formalization. In this paper, we start to discuss this topic from the point of view of methodology, and face to the complexity of social-economic system. Skills and faultiness are analyzed in detail. Conflicts stem from how to deal with the structural change of the system. In traditional system theory, it is difficult to get rid of the influence of mechanical model by dividing the system into subsystems from the definition of system and its environment. This kind of analysis on the cause and effect is based on the division of structure and functionality, which needs to be changed from the methodology level. It may lead to an appreciative theory to combine the reductive method with the evolutionary theory. Computer helps a lot in this kind of researches.