统一大市场的绿色之路

The Green Path to a Unified Megamarket：Based on Air Quality Perspective

摘要:

“构建全国统一大市场”和“持续深入打好蓝天保卫战，推动绿色发展”都是党二十大报告提出的重要任务，也是高质量发展的内在要求。为探究统一大市场的绿色之路，基于2001－2019年城市数据，采用面板回归模型探讨空气质量对市场一体化的影响，并采用多期DID模型探究《环境空气质量标准（2012）》政策对市场一体化的影响。研究表明：空气质量改善有利于市场一体化形成，该结论经过一系列的稳健性检验和内生性检验依然成立；在非城市群城市和东部地区空气质量改善对市场一体化的促进作用更为明显；商品流通程度、劳动力流动和资本流动是空气质量影响国内市场一体化的重要渠道；进一步分析发现，《环境空气质量标准（2012）》的实施，能够有效地降低市场分割，促进市场一体化。研究结果对于探索市场一体化的绿色路径具有重要意义，为地方政府推进绿色发展和建设市场一体化提供理论和经验证据。

Abstract:

"Building a unified national market" and "continuing to fight a good battle for blue skies and promoting green development" are both important tasks put forward in the report of the Twentieth Party Congress, as well as the inherent requirements of high-quality development. In order to explore the green path of a unified large market, a panel regression model is used to explore the impact of air quality on market integration based on city data from 2001-2019, and a multi-period DID model is used to explore the impact of “New Ambient Air Quality Standards（2012）” policy on market integration.The study shows that: air quality improvement is conducive to the formation of market integration, a conclusion that still holds after a series of robustness tests and endogeneity tests; the promotion of market integration by air quality improvement is more pronounced in non-urban agglomeration cities and in the eastern part of the country; the degree of commodity circulation, labor mobility, and capital mobility are the most important channels through which air quality affects the integration of the domestic market; and further analysis reveals that the implementation of “New Ambient Air Quality Standards（2012）” is able to reduce market segmentation and promote market integration effectively. The findings are important for exploring the green path of market integration and provide theoretical and empirical evidence for local governments to promote green development and build market integration.