Game Analysis of "Blockchain+Supply Chain Finance" Mode in Empowering Small and Micro Enterprises’ Financing

The integration of blockchain and supply chain provides new possibilities for solving the financing difficulties of small and micro enterprises (SMEs). This paper constructs dynamic evolutionary game models between financial institutions and SMEs as well as core firms and SMEs. Furthermore, the following conclusions were drawn by using MATLAB software for numerical simulation based on models combined with the example. Docking with blockchain platform is the dominant strategy of financial institutions. Blockchain can help SMEs make trustworthy decisions by promoting credit split circulation, improving financing efficiency, increasing default cost and reducing financing rate. In addition, through "network cooperation and credit incentive", "joint punishment for breach of trust" and "reasonable revenue sharing", the game equilibrium evolves toward the ideal state that financial institutions dare to lend, core firms and SMEs are "Double Trustworthy". Thus, the financing of SMEs is empowered by blockchain. Finally, according to the results of game analysis, suggestions that blockchain should be used to develop digital supply chain to meet the financing needs of SMEs are proposed.