针对“多个农户+公司”组织模式组成的二级易腐农产品供应链中,农户之间存在竞争关系下公司和农户的博弈合作问题,建立了“多个农户+公司”灰色博弈模型,运用灰色系统理论,对公司和农户之间的合作和双重违约进行了分析,分析表明:在灰色市场价格下,公司的违约处罚金和农户的奖励补贴的设置是他们合作与否的关键因素;多个农户之间的竞争仅影响农户的违约,在市场价格低于契约价格时,公司违约和农户之间竞争无关.提出了易腐农产品供应链中双方达到Nash均衡供应链绩效最大化的策略和措施,并通过实例进行了验证.
The cooperation game between a company and farmer is studied under the multi-farmer competition in a two-stage supply chain of perishable products, consisting of multi-farmers and a company. Based on grey-system theory, the cooperation and the violation between a company and farmers is analyzed by setting up the grey-game model. The analysis indicates that the setting of the penalty for the company breaking a contract and the rewarding for farmers keeping it is the main factor that decides whether or not they cooperate; and that competition among farmers only has influence on the farmers rather than the company violating a contract and does not have influence on the the company when market price is lower than contract price. Finally, the strategy and means, which realize the united optimization to reach Nash equilibrium in the supply chain system of perishable products, are presented and demonstrated by examples.