关键词: 供应链, 扶贫效率, 消费者偏好, 农业补贴

Abstract: The government has introduced relevant agriculturalsupport policies, such as agricultural technology extension, government procurement, and agricultural subsidies to better fight poverty. It is a very important question which way is more effective. This paper uses Stackelberg game theory to construct an e-commerce agri-products supply chain model and analyzes the decision-making behavior of supply chain members. Afterward, it analyzes the efficiency of government poverty alleviation based on the principle of increasing farmers' income and discusses the application scenarios. The results show: Both the government’s infrastructure construction and agricultural support policy can increase farmers’ income. Consumers’ poverty alleviation preferences will increase the prices of agricultural products and farmers’ profits, and can effectively improve the efficiency of the three agricultural support policies. When farmers’ investment costs are negligible, The agriculture subsidy model has the highest poverty alleviation efficiency, while the agricultural technology extension and government procurement model is more stable and more effective when the investment cost of farmers is higher. When government funds are limited, the agriculture subsidy model is the most efficient, when the funds are moderate, the agricultural technology extension model is more effective, and when funds are abundant, the government procurement model is more effective.

Key words: supplychain, povertyalleviationefficiency, consumerpreferences, agriculturalsubsidy