摘要
本文通过DEA-Malmquist指数对长江经济带2010—2019年数字经济产出效率及成因进行测度和分析,并采用Dagum基尼系数、核密度估计、Moran指数及Markov链评估该地区数字经济产出效率的地区差异与动态演变趋势。研究发现,长江上中下游数字经济产出效率及增长率呈现不同特点,技术创新、扩散及引进显著促进了长江经济带数字经济的发展。长江经济带总体差异主要由地区间差异所致,且地区间不存在显著的空间相关性。长江中游地区数字经济效率相较于上游和下游地区保持稳定的可能性较弱,存在高水平效率向下转移的趋势。据此,提出推动技术进步、实施差异化数字经济发展政策及构建长江上中下游区域化协同发展机制等建议。研究结果与结论对于推动长江经济带绿色循环低碳发展、塑造区域创新驱动发展新优势,促进区域协同发展具有重要现实意义。
This paper measures and analyzes the input-output efficiency and causes of digital economy in the Yangtze River economic belt from 2010 to 2019 through DEA-Malmquist index,and evaluates the regional differences and dynamic evolution trend of digital economy output efficiency in the region by using Dagum Gini Coefficient,Kernel Density Estimation,Moran Index and Markov Chain.The empirical results found that the output efficiency and growth rate of digital economy in the upper,middle and lower regions of the Yangtze River showed different characteristics.And the innovation,diffusion and introduction of technology significantly promoted the development of digital economy in the Yangtze River economic belt.Regional differences were the main source of the overall differences in the Yangtze River economic belt,and there was no significant spatial correlation between regions.Compared with the upper regions and lower regions,the digital economic efficiency in the middle regions of the Yangtze River was less likely to remain stable,and a downward trend of the high-level efficiency was presented.Based on this,suggestions were put forward,such as promoting technological progress,implementing differentiated digital economy development policies and building a regional coordinated development mechanism in the upper,middle and lower regions of the Yangtze River.The research results and conclusions have important practical significance for promoting the green circular low-carbon development of the Yangtze River economic belt,creating the new advantages of regional innovation-driven development,and promoting regional coordinated development.
作者
刘超
丁晨辉
郑垂勇
李峰
Liu Chao;Ding Chenhui;Zheng Chuiyong;Li Feng(School of Public Administration,Hohai University,Nanjing 210000,China;Jiangsu Yangtze River Protection and High Quality Development Research Base,Nanjing 210000,China;Business School,Hohai University,Nanjing 210000,China)
出处
《中国科技论坛》
CSSCI
北大核心
2022年第7期118-128,共11页
Forum on Science and Technology in China
基金
国家社会科学基金一般项目“供需联动视域下长江经济带城际绿色技术转移的调控对策研究”(21BJY254)
教育部人文社会科学研究项目“环境与能源双约束下长江经济带科技创新效率提升的反哺机制研究”(20YJC630180)
中央高校基本科研业务费“长江经济带产业高质量发展研究”(B210207019)。
关键词
数字经济
产出效率
地区差异
演变趋势
Digital economy
Output efficiency
Regional difference
Evolution trend
