白酒塑化剂事件对上市公司股价影响的研究
Research on the effects of liquor plasticizer event on stock prices of listed companies

近年来，食品安全负面曝光事件呈现多发态势，这对企业产生诸多不利影响，尤其是上市公司的股价下行压力较大。文章以白酒塑化剂事件为例，通过百度引擎收集每天白酒塑化剂事件媒体曝光数量，研究媒体曝光新闻数量对白酒上市公司股价的影响。研究发现，持续的媒体报道在较长一段时间内给样本企业的股价带来显著的负面影响。研究结论对公共管理部门和企业的决策具有一定的参考意义。
In recent years, food safety incidents occur often, which have negative influence on the enterprise, especially the shares of listed companies. According to the number of news about liquor plasticizer event collected by Baidu, the study did a quantitative research on the relation between media coverage and stock prices. The study found that a large number of persistent reports would make negative effects on stock prices of sample companies during a long time. The conclusion has important significance for the decision-making of public administrative department and firms.