关键词: 演化博弈, 演化稳定策略, 动态复制方程, 食品安全

Abstract:

We established two evolutionary game models for presence and absence of government regulation. We further analyzed significant impact of all their parameters on evolutionary direction of food market. From analytical results of the two models, we discover that income increase of government supervision, cost reduction of government supervision, intensity increase of punishment for illegal corporations, reputation increase of honest and qualified companies, and the reduction of production and transaction costs can effectively reduce Chinese food security issue. Analytical results therefore provide proper suggestions for the decision of supervision department.

Key words: Evolutionary Stable Strategy (ESS), food safety, evolutionary game, dynamic replication equation