The invention discloses a three-level
fresh food cold chain pricing decision
analysis method and
system. According to the method, for a supply chain formed by a manufacturer, a third-party logistics provider and a retailer, block chain adopting models without block chains and under different leading parties are established respectively, and a
cold chain input level, a block chain
traceability level and a
consumer dual preference coefficient are introduced by constructing a
consumer utility function and a market demand function, so that the market demand function is established; and establishing a multi-main-body profit function containing
loss rate adjustment. And solving the Stackelberg game model by adopting an
inverse method to obtain an optimal
equilibrium solution of the retail price, the wholesale price, the
transportation cost, the
cold chain investment and the block chain
traceability level. The influence of key parameters on the profit relationship and an optimal dominant structure are determined through sensitivity and numerical analysis, and a pricing and input strategy is output in a visual form. According to the method and the
system, dynamic collaborative optimization of supply chain members under a multi-power structure can be realized, and the pricing scientificity of fresh products and the overall profit level of the supply chain are improved.