Research On The Method Of Evaluation Of Strategic Supplier And Assignment Of Profits Among Partners Under Supply Chain Risk

Supply chain's extension in global scope aggravates its instability, and brings some negative influences to global economy. Supply chain risk management can decrease the risks in supply chain and lessen these negative effects. Supply chain risk management requires decision makers to enhance the ability of fighting against various uncertain environment and risks, and not to reduce profits in the supply chain at the same time. In such circumstances, we need to take "risk weights" into all traditional supply chain management problems, and define, explain, examine them on supply chain risk point of view.Traditional vendor selection problem don't take risks into account, only examines suppliers' competence from their performance and prices. But the problem of vendor selection is closely linked with many kinds of supply chain risks in today's chanceful and uncertain business environment, and this problem itself is also a very important means for reducing supply chain risks, so the research on the method of vendor selection has great theoretical and practical significance on supply chain risk point of view.This paper studies the method of vendor selection and the assignment of profits among partners under VMI on supply chain risk point of view. The problem of supplier selection is subdivided into three subproblems: optimization of supplier number under supply risk, supplier selection and appraisal under cooperation risk and assignment of purchasing amount under demand risk, which take supply risk, cooperation risk and demand risk in the supply chain into account respectively. The conclusions of the former two questions are treated as precondition of the last question, so the three subproblems come down in one continuous line and constitute the flow of vendor selection which is based on risk control together. Problem of assignment mechanism of profits among partners under VMI is put forward after the finish of supplier selection: for those suppliers selected and their quotas respectively, how to design the profits assignment mechanism if the manufacture wants to implement VMI with them? That is to say, a good allocation mechanism can give more profits to those who take more risk and invest more on VMI, and in such mechanism, suppliers would like to join VMI more and establish deep-seated relationship with manufactures.Concretely, in the problem of supplier number optimization under supply risk, an optimization model is established based on the "trade-off relationship between supply disruption risk and supplier management cost; then sensitivity analysis is made and the most important factor which influences the number of suppliers in different circumstances is concluded. In the problem of supplier selection and appraisal under cooperation risk, an appraisal indexes system is set up which takes various risk factors in the process of cooperation with suppliers into account; and an appraisal method based on AHP of group decision making is designed; then a calculation example is designed to validate the effectiveness of such method. In the problem of allotment of purchasing amount under demand risk, a multi-objective programming model is built which contains the condition of price discount, multi-variety, multi-supplier, and multi-factory, and the model embodies the requirements for suppliers on service quality, maintenance performance, manufacturing flexibility, etc; the linear weighted mothod is applied in solving this model, which is validated by a calculation example. In the problem of assignment of the profits amount partners under VMI, the meanings, implementation method and operation flow are introduced, then a model is established to validate the profits of VMI, and a "factor of risk and investment" is designed to adjust the method of Shapley, which forms the mechanism of profits allotment under VMI, a calculation example is designed to validate this method in the end.