Based on the background of nationwide implementation of paid for use of shopping bags,the basic "agricultural products suppliers (supermarket)-consumers" game model was established,the "cost and benefit" of each game player under the Nash equilibrium and Pareto equilibrium was discussed,and reaches the conditions under circumstance of non-cooperative Nash equilibrium and cooperative Pareto equilibrium.Then the results affirm the necessity of paid for the use of shopping bags.%基于全国范围内实行购物袋有偿使用制度这一背景,建立了基本的“农产品供应商(超市)—消费者”博弈模型,讨论了纳什均衡和帕累托均衡情况下各博弈参与人的“成本”和“收益”,得出纳什非合作均衡和帕累托合作均衡的条件,进而肯定了购物袋有偿使用的必要性.
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