关键词: 供应链管理, 质量投入, 进化博弈, 决策机制, 猪肉

Abstract: Breeding and slaughter processing are the two key links to determine pork quality and safety condition. In this paper the quality input decision-making mechanism of pork supply chains is analyzed with the bi-group evolutionary strategy optimization grey model. The results prove that, the choices of pig farms and slaughter processing enterprises on quality input strategy are closely related to the return. The government should provide subsidies to inspire pig farms or slaughter processing enterprises to carry on quality input in case that the unilateral yield of quality input is lower. The “free rider” appears on the pig farms and slaughter processing enterprises in case that the unilateral yield of quality input is higher and the bilateral yield of quality input is lower. The punitive measures should be taken to force the pig farms or slaughter processing enterprises to carry on quality input.

Key words: supply chain management, quality input, evolutionary game, decision-making mechanism, pork