国际经济与贸易学院知识库

       面对全球气候变暖问题，中国展现大国担当，于2020年提出“30·60”的减碳目标，经验表明，提高碳排放效率是实现该目标的有效途径。在产城融合背景下，产业集聚日益成为影响一个地区经济增长和碳排放的重要因素。同时，考虑到黄河流域作为能源流域，是我国减排降碳的重点区域。因而本文聚焦于黄河流域，采用理论分析和实证检验相结合的研究方法，对产业集聚与碳排放效率之间的关系进行深入研究。通过动态面板计量模型，结合替换被解释变量、缩短样本时间窗口的稳健性检验方法，验证了产业集聚与碳排放效率之间的关系。并通过中介效应模型检验了劳动力蓄水池效应、中间投入共享效应和知识溢出效应路径的存在性。进一步，从资源—非资源型城市视角分析了产业集聚对碳排放效率的异质性影响，以及政府干预和市场化水平在产业集聚影响碳排放效率中的调节作用。
　　经深入研究与实证检验，本文主要的研究结论如下：
　　一是，产业集聚对碳排放效率的改善具有显著的促进作用，这主要是源于多样化集聚，专业化集聚则抑制碳排放效率的提高。二是，专业化集聚通过抑制劳动力蓄水池效应、中间投入共享效应和知识溢出效应，导致碳排放效率下降，而多样化集聚通过促进劳动力蓄水池效应、中间投入共享效应和知识溢出效应进而改善碳排放效率。三是，非资源型城市适合多样化集聚，而资源型城市的专业化集聚为正，但不显著；政府过度干预显著抑制产业集聚、多样化集聚的碳减排效应，而市场化水平能够显著提高产业集聚和专业化集聚的碳减排效应，但对多样化集聚的促进作用不显著。
　　基于以上研究结论，本文从加强黄河流域多样化集聚、人力资本积累、分区域管理、构建有效市场、打造有为政府等视角，提出促进黄河流域产业集聚经济发展和碳减排的建议。
 

    In the face of global warming, China has shown its responsibility as a major country and put forward the "30·60" carbon reduction target in 2020, and experience has shown that improving carbon emission efficiency is an effective way to achieve this goal. In the context of industry-city integration, industrial agglomeration has increasingly become an important factor affecting the economic growth and carbon emissions of a region. At the same time, considering that the Yellow River Basin, as an energy basin, is a key area for pollutant emission reduction and carbon reduction in China. Therefore, this paper focuses on the Yellow River Basin, and uses a combination of theoretical analysis and empirical testing to conduct an in-depth study on the relationship between industrial agglomeration and carbon emission efficiency. The relationship between industrial agglomeration and carbon emission efficiency is verified by the dynamic panel econometric model, combined with the robustness test methods of replacing the explanatory variable and shortening the sample time window.The existence of the labor reservoir effect, the intermediate input sharing effect and the knowledge spillover effect path is tested by the mediating effect model. Furthermore, from the perspective of resource-non-resource-based cities, the heterogeneous impact of industrial agglomeration on carbon emission efficiency is analyzed, and the moderating role of government intervention and marketization level in the impact of industrial agglomeration on carbon emission efficiency is analyzed.
    After in-depth research and empirical testing, the main conclusions of this paper are as follows:
    First, industrial agglomeration has a significant role in promoting the improvement of carbon emission efficiency, which is mainly due to diversified agglomeration, and specialized agglomeration inhibits the improvement of carbon emission efficiency. Second, specialized agglomeration leads to the decline of carbon emission efficiency by inhibiting the labor reservoir effect, intermediate input sharing effect and knowledge spillover effect, while diversified agglomeration improves carbon emission efficiency by promoting the labor reservoir effect, intermediate input sharing effect and knowledge spillover effect. Third, Non- resource-based cities are suitable for diversified agglomeration, while resource-based cities are positive but not significant. And excessive government intervention significantly inhibits the carbon emission reduction effect of industrial agglomeration and diversified agglomeration, while the marketization level can significantly improve the carbon emission reduction effect of industrial agglomeration and specialized agglomeration, but has no significant effect on promoting diversified agglomeration.
    Based on the above research conclusions, this paper puts forward suggestions for promoting the industrial agglomeration economic development, and carbon emission reduction in the Yellow River Basin from the perspectives of strengthening diversified agglomeration, human capital accumulation, subregional management, effective construction of promising market, and effective government.