Misinformation, consumer risk perceptions, and markets: The impact of an information shock on vaping and smoking cessation
研究电子烟相关肺损伤疫情这一信息冲击如何改变消费者对电子烟的风险感知，并导致电子烟需求和用于戒烟的使用量下降约30%。
Abstract We study the impact of an information shock created by an outbreak of lung injuries apparently related to e‐cigarettes. We use data from multiple sources: surveys of risk perceptions conducted before, during, and after the outbreak; an in‐depth survey on risk perceptions and vaping and smoking behavior; and national aggregate time‐series sales data. We find that after the outbreak, consumer perceptions of the riskiness of e‐cigarettes sharply increased. From our estimated e‐cigarette demand models, we conclude that the information shock reduced e‐cigarette demand and the use of e‐cigarettes for smoking cessation by about 30 percent.