2019年1月1日起施行的《行政区划管理条例》强调通过优化行政区划设置，强化政府的行政化管理。行政级别作为国家政治权力在地理空间上的体现，对城市的资源配置、社会治理、政策规划实施起到重要作用。城市可以凭借行政级别的优势在中国的行政区经济发展模式下获取正反馈效应，因此从行政级别的角度理解城市发展也就抓住了中国特色的行政区经济模式的关键。研究首先对我国行政级别的制度背景、演化发展历程及发展趋势展开系统性梳理分析。在此基础上，基于空间政治经济学的视角运用新经济地理理论、规模经济理论、区域经济协同发展理论对行政级别、城市规模与土地产出效率之间的影响关系展开研究。分别从权力职能、财政能力、资源配置三个维度分析城市行政级别对土地产出效率的推动作用，由规模集聚、过度积累两个维度分析城市规模对土地产出效率的倒U型结构作用，再从行政区与经济区发展协同的角度分析城市行政级别与城市规模对土地产出效率的协同作用。在实证研究部分，研究通过对我国特色政治制度下行政级别设定的分析，将城市行政级别、城市规模、土地产出效率纳入统一的面板数据模型中进行定量分析，在对数据进行单位根和格兰杰因果检验的基础上，利用2000-2016年中国地级及以上城市样本进行面板数据固定效应模型分析，并通过内生性检验对模型内变量之间的干扰问题进行控制。为进一步探寻城市规模对土地产出效率倒U型作用下存在的最优区间值，研究利用门槛效应模型以全社会资本存量作为门槛变量通过500次自抽样门槛效应检验对城市规模存在的结构变化点进行探寻。通过理论与实证分析，研究发现：第一，行政级别对土地产出效率的提升具有显著影响；第二，城市规模对土地产出效率呈现倒U型作用，城市在387万人时处于最优城市规模；第三，行政级别、城市规模对土地产出效率的协同作用较小，现阶段城市行政级别与城市规模之间存在不协调的现象。最后，研究在着眼长远发展展开行政区划设置，强化行政区划设置在城市空间治理中的作用、通过行政区划制度协调行政区经济发展，促进区域空间结构体系的良性健康发展、促进行政区划设置与土地产出效率的协同作用，提升城市土地资源配置与城市发展的匹配程度三方面提出相应政策建议。

The "Administrative Division Management Regulations" that came into effect on January 1, 2019 emphasizes the strengthening of the government's administrative management by optimizing the setting of administrative divisions. As the embodiment of the country's political power in geographical space, the administrative level plays an important role in the city's resource allocation, social governance, and policy planning. Cities can take advantage of administrative levels to obtain positive feedback effects in China's administrative region economic development model. Therefore, understanding urban development from the perspective of administrative levels also captures the key to the administrative region economic model with Chinese characteristics. The research begins with a systematic analysis of the institutional background, evolutionary development process and development trend of China's administrative level. On this basis, based on the perspective of spatial political economics, the new economic geography theory, scale economy theory, and regional economic coordinated development theory are used to carry out research on the relationship between administrative levels, urban scale and land output efficiency. It analyzes the role of urban administrative levels in promoting land output efficiency from the three dimensions of power function, fiscal capacity, and resource allocation, and analyzes the inverted U-shaped structure effect of city size on land output efficiency from two dimensions of scale agglomeration and over-accumulation. Then, from the perspective of the development coordination of administrative regions and economic regions, the synergy of urban administrative levels and urban scales on the efficiency of land output is analyzed. In the empirical research part, the research analyzes the setting of administrative levels under the political system with Chinese characteristics, and incorporates urban administrative levels, city scale, and land output efficiency into a unified panel data model for quantitative analysis. Based on the Granger causality test, the panel data fixed-effect model analysis was carried out using the cities at the prefecture level and above in China from 2000 to 2016, and the endogenity test was used to control the interference between the variables in the model. In order to further explore the optimal interval value that exists under the inverted U-shaped effect of city size on land output efficiency, the study uses the threshold effect model to use the total social capital stock as the threshold variable to pass 500 self-sampling threshold effect tests on the structural changes in the city scale. Click to explore. Through theoretical and empirical analysis, the research found that:first, the administrative level has a significant impact on the efficiency of land output; second, the size of the city has an inverted U-shaped effect on the efficiency of land output, and the city is at the best when there are 3.87 million people City scale; thirdly, the synergy of administrative level and city scale on land output efficiency is relatively small. At this stage, there is an incoordination between city administrative level and city scale. Finally, the study starts with the establishment of administrative divisions focusing on long-term development, strengthening the role of administrative divisions in urban space governance, coordinating the economic development of administrative regions through the administrative division system, promoting the sound and healthy development of the regional spatial structure system, and promoting the establishment of administrative divisions and land properties. Propose corresponding policy recommendations in three aspects, which can promote the synergy of efficiency and improve the matching degree of urban land resource allocation and urban development.

F299.2;D630

国家社会科学基金重大项目"新时代我国西部中心城市和城市群高质量协调发展战略研究"（20&ZD157）