Abstract: Coordination mechanism of quality behaviors in two-echelon pork supply chain composed of a slaughtering and processing company and a supermarket is researched by means of differential game. The slaughtering and processing company's and supermarket's optimal quality behavioral decisions in the Nash non-cooperative game, Stackelberg leader-follower game, and coordinated cooperative game are investigated respectively. And then the feedback equilibrium outcomes in the four game structure are comparatively analyzed. The results show that, the slaughtering and processing company's and supermarket's quality behaviors, the pork supply chain's profit in the coordinated game are superior to those in the non-cooperative game. And the value range of distribution coefficient of pork supply chain's profit is proposed to achieve Pareto optimality of individual profits of slaughtering and processing company and supermarket, and thus coordination of quality behaviors.

Key words: pork supply chain, quality behavior, differential game, coordination mechanism

摘要： 运用微分博弈方法研究了由单一生猪屠宰加工企业和单一超市构成的二级猪肉供应链质量行为协调机制。首先考察并比较了Nash非合作博弈、Stackelberg主从博弈以及协同合作博弈情形下屠宰加工企业和超市的最优质量行为决策,研究结果表明协同合作决策模式下,屠宰加工企业和超市的质量行为以及猪肉供应链总体利润均严格优于在非合作决策模式下的相应值。然后导出了能够使屠宰加工企业和超市的个体利润达到帕累托最优,进而实现双方质量行为协调的供应链总体利润分配系数的取值范围。

关键词: 猪肉供应链, 质量行为, 微分博弈, 协调机制