市场一体化对黄河流域经济高质量发展的影响

Impact of market integration on the high-quality economic development of the Yellow River Basin

[目的]加快建设统一大市场是落实黄河流域生态保护和高质量发展战略的重要推手,研究市场一体化对黄河流域经济高质量发展的影响及机制,可为黄河流域经济高质量发展提供理论支撑和政策参考。[方法]选取2011-2020年黄河流域的69个地级市的面板数据作为样本,利用双向固定效应模型、中介模型和门槛模型探讨市场一体化对黄河流域经济高质量发展的影响。[结果]①市场一体化能够显著促进黄河流域经济高质量发展,市场一体化程度每提升1个单位,黄河流域经济高质量发展水平提升0.579个单位。②完善基础设施、要素流动和产业结构升级是市场一体化促进黄河流域经济高质量发展的重要机制。③经济集聚存在显著的单一门槛效应,当经济集聚程度超过门槛值0.020,市场一体化对黄河流域经济高质量发展的促进作用降低。④市场一体化对黄河流域经济高质量发展的促进作用存在区域异质性,中小城市市场一体化对其经济高质量发展的促进作用更强烈,特大城市市场一体化抑制其经济高质量发展。[结论]要加快推进黄河流域市场一体化建设,完善地区基础设施,畅通要素流动,促进产业结构升级,合理控制经济集聚程度和城市规模,借助政策因地制宜发挥市场一体化的高质量红利效应。

[Objective]Accelerating the construction of a unified market is an important driving force for the implementation of the ecological protection and high-quality development strategy of the Yellow River Basin,and the impact and mechanism of market integration on the high-quality economic development of the Yellow River Basin can provide theoretical support and policy reference for the high-quality economic development of the Yellow River Basin.[Methods]The panel data of 69 prefecture-level cities flowing through the Yellow River Basin from 2011 to 2020 were selected as samples,and the impact of market integration on the high-quality development of regional economy and its mechanism and heterogeneity were explored by using the two-way fixed effect model,the intermediary model and the threshold model.[Results](1)Market integration can significantly promote the high-quality economic development of the Yellow River Basin,and the high-quality economic development level of the Yellow River Basin can be increased by 0.579 units for every 1 unit increase in the degree of market integration.(2)Improving infrastructure,factor flow,and upgrading industrial structure are important mechanisms for market integration to promote high-quality economic development in the Yellow River Basin region.(3)There is a significant single threshold effect of economic agglomeration,and when the degree of economic agglomeration exceeds the threshold value of 0.020,the role of market integration in promoting the high-quality economic development of the Yellow River Basin is reduced.(4)There is regional heterogeneity in the promotion of market integration on the high-quality economic development of the Yellow River Basin,and the market integration of small and medium-sized cities has a stronger role in promoting the high-quality economic development,while the market integration of megacities inhibits its high-quality economic development.[Conclusion]It is necessary to accelerate the construction of market integration in the Yellow River Basin,improve the infrastructure in the basin,smooth the flow of factors,promote the upgrading of industrial structure,reasonably control the size of cities and the degree of economic agglomeration,and give full play to the high-quality dividend effect of market integration with the help of policies and local conditions.