Study Of Fuzzy Comprehensive Evaluation Virtual Enterprise's Risk Based On Entropy Coefficients

Being a new type of managerial operation model, virtual enterprise has already been widely used in practice nowadays. Virtual enterprise can response to the change of market demand promptly, can reduce cost, especially, can sharply reduce R&D cost for manufacturing enterprises, therefore, can make enterprises enter global market with a high speed, realize profit co-sharing. However, this can also bring some new risk problems, which are the key factor restraining the existence and development of virtual enterprises. Thus, to analyze the main factors affecting virtual enterprise's risk, and to evaluate risk management level of virtual enterprise, is no doubt of great practical significance. By starting with the emerging, development and present situation analysis of virtual enterprise, this thesis systematically analyzes the procreant mechanism of virtual enterprise's risk, the special features of the virtual enterprise's risk and the major influence factors, the factors affecting of virtual enterprise's risk are be identified by interpretation structure model and lucubrate them, then sets up evaluation indexes system on virtual enterprise; Secondly, the thesis sieves experts'investigate questionnaires by adapting "cluster analysis"and reduce twenty to sixteen;Thirdly, by using entropy theories and entropy coefficient methods, confirm the power weightiness of the each indexes: the change of customer's demand is 0.308, compete risk is 0.172, credited problem is 0.164, technology leak problem is 0.032,communicate problem is 0.059,technology problem is 0.027, quality problem is 0.204, time problem is 0.034; At last, by fuzzy comprehensive evaluation the thesis qualitatively & quantitatively evaluates the overall risk level of virtual enterprise , figures out the probability of virtual enterprise's risk in the highest level is 0.187; the probability of virtual enterprise's risk in the higher level is 0.237; the probability of virtual enterprise's risk in the common level is 0.427; the probability of virtual enterprise's risk in the lower level is 0.144; the probability of virtual enterprise's risk in the lowest level is 0.005. By through the study mentioned above, the thesis figures out some critical problems existed in virtual enterprise's risk management and their roots, also comes up with policies such as avoiding it's risk; getting rid of it's hidden risk; transferring it's risk; separating it's risk; leaving for personal needs the risk; setting up risk check list, etc., with an expectation to provide certain reference for virtual enterprise's risk management.