Game Analysis And Quantification Research On Credit Problems In Supply Chain

Originated in the late 1980s,supply chain is a comprehensive and effective systemic management pattern,which has developed rapidly ever since.Supply chain system is a kind of enterprise alliances based on mutual reliance.Credit has become a key factor of relationship between enterprises in supply chain because of such dependency relations.However,for various reasons,some problems are still exist in current researches on credit in supply chains,such as:(1)The connotation of credit in existing researchs is inconsistent; (2)Perspectives of the releted research are rough and tumble; (3)Most research are focusing on interaction between isolated enterprises,and systematic researches are lacked; (4)Studies based on quantized credit are seldom,from which supply chain enterprises can get support of technology and the principle of decision-making.Considering those problems mentioned above, this thesis conducts the research and analysis mainly from the following aspects:Firstly,game thoery are used to analyze credit problems in supply chain.Based on existing understanding of credit,conceptual structure of credit in supply chain has been redefined by extending it's concept.On the basis of qualitative analysis of credit problems in supply chain,game models based on complete credit strategy and incomplete credit strategy are founded.Through solving the models and calculating,conculution are gained as followes: (be faithful,be faithful) will be the only equilibria,so a win-win situation between both game parties can be achieved while a certain condition prevails.Moreover,from the perspective of the purchasers,a structural model of supply chain credit being established,the quantification of credit level of the suppliers has been conducted.Combination evaluation method with multiple attribution based on Analytic Hierarchy Process and Principal Component Analysis is the main research method of this part.As such a comprehensive evaluation of the credit of the optional suppliers,the dicision-making references are provided for the enterprises on the supply chain.Finally,under the premise of quantification of the credit level,analysis is conducted on the product safety input in the food chain with game theory as the tool.The result indicates, that input level of manufacturer based on Bayesian equilibrium is proportional to the possibility of the cooperation , which is exactly determined by the credit of the supplier.Credit level can be evaluated by using the evaluation means offered in this thesis, according to which,safety input level of an enterprise is determined so as to reduce safety input risks and increase the returns.