The synergistic evolutionary game of multibody behavior in supply chain commercial credit financing

With the deepening integration of the digital economy and the supply chain system, commercial credit financing has become an important path for alleviating the financing difficulties faced by small and medium-sized enterprises. Under the assumption of finite rationality, this paper starts from the perspective of multibody behavioral evolution and clarifies the role positioning and strategic interactions among suppliers, core enterprises and clients in commercial credit financing. On the basis of evolutionary game theory, MATLAB is used to simulate the evolutionary path and is combined with system dynamics to simulate and analyze the initial strategy and external variables of the system. The results show that the suppliers' willingness to finance is significantly affected by reputation risk and time cost, the performance behavior of the core enterprise plays a decisive role in the evolution of upstream and downstream strategies, and the performance stability of the client's merchant is the foundation of the closed loop of the credit chain. The three parties internalize potential risks to a certain extent through a risk-hedging mechanism so the system maintains a stable evolutionary trend.