School of Emergency Management, Institute of Disaster Prevention Technology, Langfang 065210, Hebei, China
Based on a theoretical explanation of the impact of the coordinated development of Beijing-Tianjin-Hebei on eco-environmental quality, this paper takes the first batch of pilot cities implemented in 2015 are regarded as a quasi-natural experiment. Based on the panel data of 61 prefecture-level cities from 2011 to 2021. This paper empirically testes the impact of the coordinated development of Beijing-Tianjin-Hebei on eco-environmental quality using a differences-in-differences model, and analyze the heterogeneity. The findings are as follows: the coordinated development of the Beijing-Tianjin-Hebei region improve the eco-environmental quality, and this result still holds after robustness tests such as the propensity score matching and changing time window; heterogeneity analysis shows that the larger the population size of a city, the greater the impact of coordinated development of Beijing-Tianjin-Hebei region on ecological environment quality . Therefore, government departments should perform their functions, give full play to the role of the coordinated development of Beijing-Tianjin-Hebei in improving the quality of the ecological environment, implement differentiated eco-environment coordinated governance plan based on local conditions, and provide Ecological environment of higher quality.
Coordinated Development of Beijing-Tianjin-Hebei Region, Eco-environment Quality, Differences-in-Differences Model, Propensity Score Matching
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