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The Research On Propagation Modeling And Simulation Of Food Safety Crisis Information In Network Environment

Posted on:2013-09-29Degree:MasterType:Thesis
Country:ChinaCandidate:Y H ChenFull Text:PDF
GTID:2248330374976147Subject:Management decision-making and system theory
Abstract/Summary:PDF Full Text Request
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.
Keywords/Search Tags:Food security crisis information dissemination, network environment, complex adaptivesystem, simulation model
PDF Full Text Request
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