Can Smartphone App Trainings Help Reduce Exposure to Air Pollution? Experimental Evidence from Bogotá
通过随机对照试验，评估培训波哥大大学生使用显示实时空气质量数据的手机应用的效果，发现培训增加了信息获取、知识及规避行为，并估算出若推广至全市可显著减少过早死亡。
<h3>Abstract</h3> We conduct a randomized controlled trial to evaluate the impact of training university students in Bogotá to use a smartphone app that displays real-time location-specific air quality data. The training increased participants’ acquisition of information about air quality, their knowledge about avoidance behavior, and most important, their reported avoidance behavior. Back-of-the-envelope calculations suggest that if scaled to the entire city of Bogotá, the training could reduce premature cardiovascular, cerebrovascular, and respiratory deaths among the additional 3–8 percent of the city’s population incentivized to undertake avoidance behavior by 51–61 percent per year, a benefit valued at US$11–13 million.