 Does the opening of high-speed railway improve air quality? Evidence from ChinaXinhua Zhu, Chun Dai and Yigang Wei Socio-Economic Planning Sciences, 2022, vol. 84, issue C Abstract: This study aims to investigate the effects and mechanisms of the opening of HSR on air quality in China. The Difference-in-Difference-in-Differences estimation approaches are used to explore the cases of 271 cities during 2007–2016. Results are presented as follows. (1) The opening of HSR has generally improved the air quality significantly. Compared with cities with no HSR, the PM2.5 concentration in cities with HSR has been lowered by 3.5%; (2) From a dynamic perspective, the pollution inhibition effects of HSR start in the first and second years after the opening; (3) Heterogeneity analysis shows that the air quality of cities with HSR affected by the Ten Clauses by The State Council is significantly improved; (4) Mechanism analysis shows that the opening of HSR has affected the PM2.5 concentration through three ways: the substitution effect on traditional means of transportation, the optimisation of industrial structure and the influence of technological progress. Keywords: High-speed railway; Air quality; PM2.5 concentration; Multi-stage difference-in-differences model; China (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:soceps:v:84:y:2022:i:c:s0038012122001768 DOI: 10.1016/j.seps.2022.101381 Access Statistics for this article Socio-Economic Planning Sciences is currently edited by Barnett R. Parker More articles in Socio-Economic Planning Sciences from Elsevier |
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