导　　师： 李志宏

学科专业： 1201

授予学位： 硕士

作　　者： ;

机构地区： 华南理工大学

摘　　要： 近年来我国食品安全问题频繁发生，不仅引起了社会恐慌而且造成了国家巨大的经济损失，甚至在一定程度上会影响我国在国际贸易中的信誉。食品安全危机是公共危机的一种形式，但是食品安全问题是涉及范围最广、影响公众生命健康最直接的一种公共危机。通过本研究的成果，食品监管部门可以一方面可以对食品安全问题进行预测，一定程度上遏制食品安全问题的发生，另一方面可以通过对网络新闻媒体和网民信息传播行为的正常引导，使食品安全危机信息进行有效的传播。对于食品企业而言，避免出现食品安全问题根本在于企业合法合规的经营，平时注重树立企业形象。当网络中发生本企业虚假的食品危机时应采取适当的手段予以控制，遏制不必要损失的发生。 本文以2008年三鹿奶粉事件为研究案例，基于复杂适应系统理论，利用基于agent建模和仿真工具Netlogo，对网络环境下食品安全危机信息传播进行了仿真研究，探讨了在食品安全危机信息的网络传播过程中各主体之间的交互作用，主要揭示了政府主体、食品企业主体和网络新闻媒体主体对网民食品安全信心的影响，并提出了引导网络中食品安全危机舆论的正常传播，提升网民对我国食品质量安全信心的几点建议。 通过研究发现，在控制其他因素不变的情况下，政府公信力越大，食品安全危机信息传播就越早进入稳定期，且进入稳定期后对食品安全有信心的网民人数也逐渐增多；政府真实的食品安全危机响应速度越快，食品安全危机信息传播越早进入稳定期，相应的危机蔓延期和缓解期明显缩短，进入稳定期后对中国食品安全有信心的网民人数也逐渐增多；在增强政府对企业监管力度条件下，食品安全危机信息传播越早进入稳定期，但是进入稳定期后对中国食品安全有信心的网民人数并没有出现增多的现象，而食品危机信息对网民食品安全无影响的人数在逐渐增加；在增强政府对网络新闻媒体引导力度条件下，食品安全危机信息传播越早进入稳定期，但是进入稳定期后对中国食品安全有信心的网民人数并没有出现增多的现象，而食品危机信息对网民食品安全无影响的人数在逐渐增加；在其它因素不变的情况下，通过单独增加食品企业的信息公开速度、单独增加食品企业的信息公开透明度以及两者同时增加的条件下均可以缩短危机信息的稳定期，且两者同时增加条件下的效果最佳。 In recent years, China's food safety problems occur frequently, not only cause socialpanic and caused the country's huge economic losses, and even to some extent, will affect thecredibility of our country in international trade. The food security crisis is a form of publiccrisis, but the food safety problem is the widest scope, affecting public life and health of themost direct kind of public crisis. By the results of this study, food regulatory authorities canpredict the issue of food safety and curb the occurrence of food safety issues to some extenton one hand, on the other hand food security crisis through online media and Internet users ininformation dissemination behavior of normal boot effective means of communication. Forfood businesses, to avoid food safety problems lies in the business of corporate legalcompliance, and usually pay attention to establish a corporate image. Fake food crisis in theenterprise network should be controlled to take appropriate means to curb the unnecessaryloss. We choose2008Sanlu milk powder incident as a typical case, based on complexadaptive system theory and use the agent based simulation and modeling tool Netlogo tostudy food safety crisis information dissemination in network environment. Then, we exploreinteraction effect between each main body in food safety crisis information dissemination innetwork environment, and Mainly reveals how the Government agent, food company agentand network media agent influence internet users confidence in food safety. We made severalsuggestions on how to guide a normal spread of food safety crisis in public opinion innetwork environment and how to enhance the confidence of China's food quality and safety ofthe Internet users. Our research found that, in the case of controlling for other factors constantly, the greaterthe credibility of the government is, the sooner food security crisis information disseminationsooner enter the stable phase, and when the model enters stable period, the number of Internetusers who hold confidence in food safety is gradually increased; the faster the response ofgovernment releases the real food safety, the sooner food security crisis informationdissemination enters the stable phase, and when the model enters stable period, the number of Internet users who hold confidence in food safety is gradually increased; in the case thatgovernment enhances company supervision, food security crisis information disseminationenters the stable phase becomes more earlier, but when the model enters stable period, thenumber of Internet users who hold confidence in food safety is not significantly increased; inthe case that government enhances network media supervision, food security crisisinformation dissemination enters the stable phase becomes more earlier, but when the modelenters stable period, the number of Internet users who hold confidence in food safety is notsignificantly increased and the number of Internet users who hold neutral confidence in foodsafety is significantly increased; in the case of controlling for other factors constantly,increasing the information disclose speed or increasing the information disclose transparencyor both increasing these two factors could shorten the stabilization period of crisis informationspread.

关 键 词： 食品安全危机信息传播 网络环境 复杂适应系统理论 仿真模型

分 类 号： [G206 F203 F224]

领　　域： [文化科学] [经济管理] [经济管理]