讲座题目 | Redesign China’s Air Pollution Abatement Scheme（Peng Fangyuan，He Guojun，Li Shuo） | ||
主讲人 （单位） | 彭方园 （香港大学） | 主持人 （单位） | 刘修岩 （东南大学） |
讲座时间 | 2025年01月06日（周一）9：30 | 讲座地点 | 经管楼B201会议室 |
主讲人简介 |
彭方园现为香港大学经管学院经济系博士后研究员，2023年于香港科技大学获得城市治理与设计博士学位。她主要从事环境经济学、城市经济学和国际贸易研究，擅长运用遥感大数据和空间分析方法进行实证研究。其研究成果发表于American Economic Journal: Economic Policy等期刊，担任Journal of Environmental Economics and Management等期刊审稿人。 | ||
讲座内容摘要 | Addressing air pollution is a critical concern. Traditionally, air pollution regulations primarily target areas with high pollution levels. However, regions with the highest pollution levels may not always contribute the most to nationwide pollution due to the long-distance transport of air pollutants. This paper uses high-frequency backward trajectory data to examine the spillover effects of PM2.5 pollution in China from 2015 to 2023. The city-pair regression reveals a statistically significant positive correlation between the pollution levels in source and destination cities. Interestingly, the geographic distribution of air pollution spillover impact significantly diverges from the pattern of PM2.5 concentration. This divergence indicates a discrepancy between local air pollution levels and national air pollution contributions. Moreover, the study reveals that China’s past city-level PM2.5 reduction targets were primarily determined by PM2.5 concentration rather than the contribution of local air pollution to national air pollution, suggesting potential efficiency loss. Lastly, the paper proposes an alternative pollution reduction target allocation scheme that considers spillover effects. The results indicate that China has disproportionately focused on the most polluted cities while under-reacting to many less-polluted cities with significant spillover impacts. | ||
