空气污染水平的信息在公众的看法中是否重要? 来自中国的洞察力
Guangfei Yang1, Yi Ju1, Wenli Ni2
1School of Economics and Management, Dalian University of Technology, Dalian, Liaoning, China.
Journal of environmental management
|November 21, 2023
概括
公布的空气污染水平显著提高了公众的看法,相当于空气质量指数 (AQI) 上升100点. 然而,这种效应随着重复暴露而减弱,显示信息疲劳.
科学领域:
- 环境科学 环境科学
- 公共卫生 公共卫生
- 行为经济学是一种行为经济学.
背景情况:
- 之前的研究证实,空气信息披露影响污染感知.
- 传达的空气质量数据的具体影响尚未得到充分研究.
研究的目的:
- 量化公布的空气污染水平对公众感知的影响.
- 调查影响公众对空气质量信息反应的因素.
主要方法:
- 分析来自中国的与航空有关的微博帖子 (2019年6月至2021年5月).
- 应用回归不连续性 (RD) 设计来评估公布的污染水平的因果影响.
主要成果:
- 一个公布的更高的污染水平会使在线污染感知增加3.5%-3.7%,相当于100+ AQI的增加.
- 观察到信息疲劳:影响随着事件持续/频率而减弱.
- 对"良好" (2.8%) 和"轻微污染" (4.8%) 级别的感知增加是显著的.
- 男人,受过高等教育的人和城市居民表现出更大的反应能力.
结论:
- 公布的空气污染水平直接影响公众的看法,影响因污染严重程度和暴露而异.
- 结果为优化空气质量指数 (AQI) 标准提供了洞察力,通过有效的空气信息传播来提高公共福利.
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