Research On Food Safety Culture Based On System Dynamics

In recent years,some food enterprises consider making profits only and severely lack food security concerns.As a result,the frequent occurrence of food safety accidents is more common.Food safety incident has become the major problem which affects people's live and social stability.Although the food safety law has been implemented for several years and great achievements have been made in the food safety system construction,surprisingly,inferior food still emerge in endlessly,seriously threats to people's life and health,which lead to fear and discontent to consumers and high pressure to the food safety supervision department.The above shows that the implementation of the law is not enough,it is high time to pay attention to soft power,strengthen the food safety culture and moral construction.The purpose of food safety culture is to be guided by the concept of food safety,integrate the moral principles into the industry personnel's inner beliefs,and put it into practice,only in this way can our food is becoming more and more safety.Based on the relative theory and method of system dynamics,this paper studies the development of food safety culture by establishing the system dynamics model of food safety culture,and from the theory and in fact verifying the effectiveness of the proposed model.The main content in the paper is as follows:(1)Firstly,Explanation structure model(ISM)is applied to build the hierarchical structure model of food safety culture;Analytic Hierarchy Process(AHP)is used to calculate the weight of each factor to the total target;Fuzzy comprehensive evaluation method is used to extract key influence factors of food safety culture,which lay theoretical foundation for the system dynamics model.(2)Secondly,on the basis of theory of system dynamics,establish the system dynamics model of food safety culture.In the paper,the system dynamics model includes the system of concept,state,institution and behavior.Concrete steps are as follows:determine the boundary of the food safety culture system,and put forward the basic hypothesis of modeling;According to the feedback relation of the influence factors,causal graph is drawn;Based on some important feedback loops in the system,the relationship between the important variables and the causal graph,dynamic flow chart of food safety culture is drawn;According to the relationship of the elements of food safety culture,system dynamics equation is obtained,which is through the theory and the actual test.(3)Finally,the paper analyzes the system dynamics simulation,the policy to improve food safety culture is carried on under the change of model parameters,which put forward countermeasures to promote the development of enterprise safety culture.