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    논문4: 梁正瀚, 李航, 金相郁 「创新与最佳城市规模的关系—以中国为例」
    LIANG Zhenghan, LI Hang, KIM Sangwook, The Relation between Innovation and Optimal Urban Scale: The Case of Chinese Urban
저자 양정한, 이항, 김상욱 권호 Vol.2 No.2
언어 중국어 페이지 121
게재일 2021.07.31. PDF Download
키워드
    中国, 城市, 创新, 创新指数, 最佳城市规模
    China, Urban, Innovation, Innovation Index, Optimal Urban Scale
요약
 城市是创新的空间，创新伴随着人力资本和知识在城市的积累与扩散 得到加强，但是创新是否会随着城市规模的扩大一直增加，是否存在一 个最佳城市规模。很少有学者从创新的角度来探索最佳城市规模的问 题，这是一个创新性的问题，也是一个很有现实意义的问题。本文选取 中国2001年至2016年16年间地级及以上城市的面板数据，建立了回归分 析模型，并分别进行了面板分析和截面分析。证明城市规模与创新之间 存在倒U字型关系，存在最佳城市规模;含有直辖市的数据表明最佳城市 规模为1146万人，不含直辖市的数据表明最佳城市规模为622.7万人。截 面分析表明，不同年份和不同的样本量得到的最佳城市规模值不同，最 佳城市规模可能是一个动态值，2001-2016年间，在不含直辖市的情况下每年的最佳城市规模在870.6万人至1384.7万人之间，呈逐步增大趋势; 在不含直辖市的情况下每年的最佳城市规模在583.7万人至677.1万人之 间，呈不规则状态，围绕634万人的规模上下波动。中国的绝大多数城市 尚未达到最佳城市规模，城市规模存在较大的提升空间。
Abstract Urban is a space for innovation. With the accumulation and diffusion of human capital and knowledge in cities, innovation has been strengthened. However, it is a question whether innovation will increase with the expansion of urban scale and whether there is an optimal urban scale. Few scholars have explored the optimal urban scale from the perspective of innovation, which is an innovative problem and also a problem of great practical significance. In this paper, the panel data of prefecture-level and above cities in China from 2001 to 2016 are selected, and OLS model is established. Panel analysis and cross-section analysis are carried out respectively to prove that there is an inverted U-shaped relationship between urban scale and innovation, and there is the optimal urban scale. The data including municipalities directly under the central government show that the optimal urban scale is 11.46 million people, while the data excluding municipalities show that the optimal urban scale is 6.227 million people. Cross-section analysis shows that the optimal urban scale values obtained from different years and different sample scale are different. The optimal urban scale may be a dynamic value. From 2001 to 2016, the optimal urban scale in each year without municipalities directly under the central government is between 8.706 million and 13.847 million, showing a gradual increase trend; In the absence of municipalities directly under the Central Government, the optimal urban scale is between 5.837 million and 6.771 million people, which is in an irregular state and fluctuates around the scale of 6.34 million people. Most cities in China have not yet reached the optimal urban scale, and there is much room for improvement in urban scale.