In this paper,with rural revitalization as the background,through the analysis of domestic and foreign literature and theories related to fresh agricultural products supply chain,dual-channel supply chain,incentive mechanism and other aspects,based on the secondary supply chain consisting of suppliers(farmers’ cooperatives)and retailers(supermarkets),the establishment of fresh agricultural products dual-channel supply chain decision-making model considering preservation efforts.The influence of related parameters on fresh agricultural products dual-channel supply chain preservation decision and optimal profit was analyzed in two modes of centralized decision making and decentralized decision making,and the supply chain of fresh agricultural products was coordinated by adding contracts.The incentive model of dual channel supply chain subsidy for fresh agricultural products considering government subsidy was further constructed.The influence of different government subsidies on supply chain decisionmaking and profit level is analyzed emphatically.The effects of the three subsidies were then compared with those without.In addition,contract coordination is studied for the double marginal effect of the three subsidy methods under decentralized decisionmaking.The results show that:(1)Regardless of government subsidies,the preservation efforts,agricultural output and total supply chain profits of farmer cooperatives under centralized decisionmaking mode are better than those under decentralized decision-making.(2)In the case that the government provides fresh technical subsidies to suppliers,the demand for fresh agricultural products,online selling price and wholesale price of farmers’ cooperatives and supermarkets,as well as supply chain profits are all proportional to the amount of government subsidies under the decentralized decision.When the government subsidizes suppliers’ unit costs,the online selling price of farmers’ cooperatives is inversely proportional to the government subsidy,and so is the offline selling price of supermarkets.When the government provides unit sales subsidies to retailers,the online sales price and demand of farmer cooperatives are inversely proportional to the government subsidies,and the offline sales price of supermarkets is inversely proportional to the government subsidies.The preservation efforts of farmers’ cooperatives are proportional to government subsidies.(3)The design of "two-part pricing" coordination contract can effectively solve the problem of double marginal effect under decentralized decision-making,improve the mutual trust and cooperation among supply chain members,and effectively improve the overall profit level of the supply chain.(4)Under the three subsidy methods,the government’s fresh technology subsidy to suppliers can significantly improve the supply chain’s preservation efforts.Under the three subsidy methods,when the government subsidy is at a certain threshold,the performance of the government’s fresh technology subsidy to the supplier is the highest;when it is higher than this threshold,the performance of the government’s unit production cost subsidy to the supplier is higher.In terms of optimal profit level,under the same subsidy intensity,when the government subsidized the supplier’s unit cost,the supplier’s and the retailer’s respective profit and the total profit of the supply chain were the highest,followed by when the government subsidized the retailer’s unit sales,and the least profit when the government subsidized the supplier’s fresh technology. |