摘要
国家级新区作为体制机制创新的国家战略区域,对推动区域生产要素高效利用具有重要意义。基于2003—2021年中国70个大中城市的面板数据,结合双重差分模型和空间双重差分模型分析国家级新区设立对土地利用效率的影响及其时空异质性。研究发现:首先,国家级新区对土地利用效率具有显著且至少持续10年的提升效应,但它会随时间的推移呈现下降趋势;其次,国家级新区对行政等级较高或位于东部地区的城市的土地利用效率提升效应较小,同时可显著提升周边150—250 km范围内城市的土地利用效率;最后,机制分析表明国家级新区通过创新效应、结构效应和集聚效应三重路径对土地利用效率产生正向影响。
As a national strategic area for institutional innovation,state-level new areas are of great significance in promoting the efficient utilization of regional production factors.Based on the panel data of 70 large and medium-sized cities in China from 2003 to 2021,this paper empirically examined the impact of the establishment of state-level new areas on urban land use efficiency and its spatio-temporal heterogeneity using the difference-in-difference and spatial difference-in-difference methods.The results show that:firstly,state-level new areas have a significant and sustained improvement effect on land use efficiency for at least 10 years,but it shows a downward trend over time;secondly,state-level new areas have a relatively small impact on improving land use efficiency in cities with higher administrative levels or located in the eastern region,and can significantly improve the land use efficiency of cities within the surrounding 150-250 km range;finally,mechanism analysis shows that state-level new areas positively affect land use efficiency through the triple path of innovation effect,structural effect and agglomeration effect.
作者
马学广
蒋策
MA Xue-guang;JIANG Ce(Zhou Enlai School of Government,Nankai University,Tianjin 300350,China)
出处
《南昌大学学报(人文社会科学版)》
北大核心
2024年第1期84-96,共13页
Journal of Nanchang University(Humanities and Social Sciences)
基金
国家自然科学基金面上项目“海上通道安全视阈下中国海外战略支点体系构建、演变和治理研究”(42371175)
国家社会科学基金项目“新国家空间理论视阈下新时代中国城镇体系的尺度重组研究”(18BJL092)。
关键词
国家级新区
土地利用效率
时空异质性
双重差分模型
空间双重差分模型
state-level new areas
land use efficiency
spatio-temporal heterogeneity
difference-in-difference model
spatial difference-in-difference model