An Experimental Study On The Influences Of Information Revealing And Social Public Opinion On Food Fraud

In recent years,food fraud incidents spread on the Internet have increased significantly.On the one hand,due to the continuous improvement of living standards,people pay more and more attention to food safety.Food public opinion is easy to form and spread under the convenient network media;on the other hand,regulatory policies caught them,such as publishing the results of food quality inspection.A large number of facts have proved that information disclosure and public opinion will affect the behavior of market decision-makers.On this basis,it is more practical to study the specific impact mechanism of the two and find new ways to control food fraud.Based on the experimental model of "lemon market",this paper expands the environment of information disclosure and social public opinion market.Firstly,it examines the influence of social public opinion on fraud under the environment of information disclosure market,and finds that there are differences between the influence of positive public opinion and negative public opinion on fraud.As a result,we study the information under three market environments: non-public opinion,positive public opinion and negative public opinion.Revealing the impact of fraud,we find that in different social public opinion environments,more effective market regulation can be achieved by adjusting information disclosure policies and cooperating with public opinion.We further test the robustness of the results by controlling individual heterogeneity.The conclusions are summarized as follows:Firstly,no information reveals that in the market environment,the food market is flooded with inferior products,the lower the product quality,the higher the relative price,and the seller has quality fraud and price fraud.Positive public opinion can make the seller improve the product grade,reduce the product price at the same time,effectively alleviate fraud;negative public opinion can significantly increase the product price,price fraud is more obvious.After controlling individual differences,the impact is still significant.Even in the market environment of information disclosure,because the information asymmetry has not been completely eliminated,the market is still dominated by inferior products,and the seller's fraud is still serious.Positive public opinion and negative public opinion can improve the overall market product grade,and at the same time,positive public opinion can also reduce product prices.Secondly,in the positive and non-public opinion market environment,information disclosure does not affect the seller's product quality decision-making,but it will increase the price of the product,and stronger price fraud will lead to further widening the income gap between buyers and sellers.Under the negative public opinion market environment,information disclosure makes the seller improve product quality,reduce the quality fraud,the price of the product is not affected,and eventually the income gap between the seller and the buyer is narrowed,and the overall social welfare is improved.Thirdly,individual heterogeneity will lead to the difference of sellers' decision-making.The more guilty and responsible the seller is,the higher the grade of products;the more altruistic and extroverted the seller is,the lower the price of products.