【題  目】Paving the Green Tracks: The Environmental Impact of Heavy-haul Railways in China 

【時  間】2025年5月27日（星期二），14:00-15:30

【地  點】后主樓1710會議室

【主講人】譚  婭 副教授（對外經(jīng)濟貿(mào)易大學(xué)國際經(jīng)濟貿(mào)易學(xué)院）

【主持人】陳超凡 副教授（北京師范大學(xué)經(jīng)濟與工商管理學(xué)院）

摘要：

This paper examines the environmental impacts of replacing road routes with heavy-haul railways for coal transport. While switching from heavy trucks to railways is expected to reduce emissions, potential offsetting effects—such as increased vehicle traffic and local coal consumption could influence outcomes. Using a Difference-in-Differences regression analysis, this study examines changes in PM2.5 levels in counties along the replaced road routes compared to neighboring regions, before and after the expansion of heavy-haul railway capacity. The findings reveal that the railway expansions generated a 1.5% net reduction in PM2.5 levels in the affected regions, as validated through robustness checks. The observed reduction in PM2.5 is primarily driven by decreases in heavy truck emissions and coal dust; the potential mitigating factors have a minimal influence. Additionally, significant health improvements and economic gains including the clustering of the service sector and increased talent influx, are observed in the affected regions. These outcomes demonstrate the dual benefits of improved air quality and sustainable development resulting from the heavy-haul railways.

報告人簡介：

譚婭，北京大學(xué)經(jīng)濟學(xué)博士，對外經(jīng)濟貿(mào)易大學(xué)國際經(jīng)濟貿(mào)易學(xué)院副教授，金磚國家研究中心研究員、副主任。主要研究領(lǐng)域為區(qū)域與城市經(jīng)濟學(xué)、公共經(jīng)濟學(xué)。研究成果發(fā)表在Economic Journal, Journal of Urban Economics, Journal of Health Economics, China & World Economy, iScience，Journal of Cleaner Production,《金融研究》《經(jīng)濟學(xué)(季刊)》《世界經(jīng)濟》等國內(nèi)外期刊。主持國家自然科學(xué)基金等項目。