网络时代农产品质量安全事件风险扩散的路径研究——以镉大米事件为例  

Research on the Risk Diffusion Path of Agricultural Product Quality and Safety Events in the Network Era-Taking the Cadmium Rice Incident as an Example

作　　者：朱凯 余恩源 张群祥[1,2] 冯昊成 Zhu Kai;Yu Enyuan;Zhang Qunxiang;Feng Haocheng(College of Economics and Management,Zhejiang A&F University,Hangzhou Zhejiang 311300;Research Academy for Rural Revitalization of Zhejiang Province,Hangzhou Zhejiang 311300,China)

机构地区：[1]浙江农林大学经济管理学院,浙江杭州311300 [2]浙江省乡村振兴研究院,浙江杭州311300

出　　处：《河北科技师范学院学报（社会科学版）》2023年第4期61-68,共8页Journal of Hebei Normal University of Science & Technology(Social Sciences)

基　　金：国家社会科学基金项目“互联网时代农产品质量安全事件风险放大机制及其影响研究”(19BGL179)。

摘　　要：以镉大米事件为例,媒介报道数据为基础,综合应用核密度估计法、最邻近指数、热点分析和变异系数等方法以探索性揭示网络时代镉大米事件风险扩散的时间演化过程及空间路径。结果表明:镉大米事件风险扩散时间演化呈现“高—低—高”的V字态势在年际间波动显著,其变动可对应为爆发期、回落期、反弹期;事件风险的空间路径则表现为“单核心—发散式”特征在域间传播。Taking the cadmium rice incident as an example,the temporal evolution process and spatial path of the risk diffusion in the network era are studied based on the data reported by the media with the kernel density estimation method,nearest neighbor index,hot spot analysis and coefficient of variation.The results show that the temporal evolution of risk diffusion of cadmium rice incident presents a V-shaped pattern of“high-low-high”with significant fluctuations between years,which can be corresponded to the period of the outbreak,fallback and rebound;and the spatial path of the risk of the incident is characterized by“single core-divergence”propagation among domains.

关 键 词：农产品质量安全 风险扩散 路径研究 核密度估计 镉大米 

分 类 号：F322[经济管理—产业经济]