| Supply chain finance can help solve the financing problems of SMEs and allow the whole supply chain to run smoothly.However,due to the asymmetry of information,it is difficult for financial institutions to identify the authenticity of accounts receivable,which makes them face the increasing pressure of fraudulent loans.In recent years,with the integration of blockchain technology and supply chain financial services,a blockchain supply chain financial transaction model has emerged,which has greatly improved the transparency of financing compared with the traditional model.Although scholars at home and abroad have conducted more studies on this model,they focus on the use of blockchain technology for supply chain governance and management model optimization,and few scholars have studied how blockchain technology affects the behavioral decisions among the participating subjects of the supply chain system.Therefore,the main purpose of this paper is to investigate how blockchain technology affects the decision making among the participants in the supply chain finance system.In this paper,we consider the possibility of "joint fraud" between SMEs and core enterprises,analyze the factors that affect the decision making of chain participants,and compare the decision making of financial institutions and SMEs before and after the introduction of blockchain technology.To examine whether the factoring financing model of traditional supply chain finance will be improved by the introduction of blockchain technology.The main research content of this paper is divided into three parts:(1)Using the evolutionary game model,embedding the risk behavior of core enterprises into the "collusion" decision under the "default" behavior of SMEs,and constructing the replication dynamic differential equation by analyzing the change of returns of financial institutions and SMEs to find the equilibrium point.(2)On the basis of the traditional evolutionary game model of supply chain factoring,the application of blockchain information technology is introduced to modify the relevant parameters,establish the evolutionary game model,construct the replicated dynamic differential equation,find the equilibrium point,and then analyze the change of the stable strategy in the equilibrium state,and subsequently compare the change of the system equilibrium state before and after the use of blockchain technology.The system equilibrium state changes before and after the use of blockchain technology are compared and analyzed,and the numerical simulation analysis is carried out by Matlab software,and the advantages of the application of blockchain technology are discussed in view of the simulation results;(3)Actual cases and case studies.Through the analysis of real cases,the promotion and improvement of blockchain technology on the supply chain finance of small and mediumsized enterprises are examined.This paper finds that blockchain technology can help SMEs to make a decision to keep the contract,which makes financial institutions dare to lend and willing to lend,and SMEs and financial institutions develop towards the ideal state of "keeping the contract and accepting it",which is conducive to promoting the healthy development of supply chain finance ecology and relieving the financing difficulties of SMEs.Blockchain technology creates a stricter external environment by solving the problem of information asymmetry.At this time,no matter how high the creditworthiness of SMEs and the proportion of revenue distribution that can be shared by collusion,a highly transparent business regulatory environment can effectively solve the problem that the decisionmaking between SMEs and financial institutions cannot reach a stable state,thus reducing the risks in supply chain finance and making the evolutionary system tend to be accepted by financial institutions.The business application is accepted by the financial institutions and the SMEs choose to keep the contract in a stable state,so that the financing problem of SMEs can be effectively solved. |
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