Decision-making Model Of Fresh Dual-channel Supply Chain Base On The Block Chain Traceability

The traceability system of fresh agricultural products based on blockchain technology,based on the hierarchical framework of the blockchain and relying on the operating rules of the traceability system,collects the transaction information of fresh products at each node of the supply chain to form an information label.The design and implementation of the blockchain traceability system can effectively reduce the loss of freshness value during the circulation of fresh agricultural products,and improve the quality and safety of fresh agricultural products.However,the input cost of the blockchain traceability system is relatively high at present.Therefore,it is important to study whether supply chain members choose and invest in blockchain traceability system.In this context,this paper constructs a secondary fresh agricultural product supply chain system composed of production bases and supermarkets,considers opening up online direct sales channels for the production bases,establishes a production base-led dual-channel supply chain decision-making model,and has obtained the optimal profit of the production base and supermarket before and after joining the blockchain traceability system,the optimal wholesale price,the retail price of physical channels and the online direct sales price,the optimal demand of the two channels.In addition,the paper compared and studied the investment and pricing decisions of each member of the supply chain as well as the changes in dual-channel demand before and after joining the blockchain traceability system.Finally,combined with the actual case,the conclusion is verified by numerical simulation.The following conclusions could be drawn from the experiments:(1)The blockchain traceability input costs that affect the profit changes of production bases and supermarkets have boundary value and are different.(2)The retail price of physical channels and the pricing of online direct sales channels always increase with the increase in blockchain traceability input costs,while the wholesale price is affected by the cost-sharing ratio.(3)The proportion of physical channels affects the profits of production bases and supermarkets,and the production base’s Profit is more sensitive to the proportion of physical channels.