| 摘要: |
| 数字经济作为促进经济高质量发展的重要推动力，正逐步赋能海洋经济领域，成为促进海洋经济迈向高质量发展的重要引擎。新时代海洋强国背景下，探讨数字经济对海洋经济高质量发展的影响及机制具有重要意义。文章基于 2011—2020 年我国 11 个沿海省（自治区、直辖市）面板数据，通过熵值法对数字经济发展水平和海洋经济高质量发展水平进行测度，实证分析了数字经济与海洋经济高质量发展之间的相关关系，并从空间维度进行了拓展研究。结果表明，数字经济会显著提高海洋经济高质量发展水平，二者存在明显的正相关关系；产业结构和当地金融发展水平会提升数字经济的传导效率，强化数字经济对海洋经济高质量发展的影响效应；进一步研究发现，数字经济达到一定规模后，数字要素会向邻近地区扩散，数字经济对海洋经济高质量发展水平具有显著的空间溢出效应。研究结果为完善投资结构、优化金融服务、促进海洋经济高质量发展等方面提供建议。 |
| 关键词: 数字经济 海洋经济高质量发展 沿海省（自治区、直辖市） 空间溢出效应 |
| DOI：10.20016/j.cnki.hykfygl.2025.09.007 |
| 投稿时间：2025-01-13修订日期：2025-08-08 |
| 基金项目:国家社科基金重大专项：新时代海洋强国指标体系与推进路径研究（18VHQ003）；人文社科横向服务：海岸带蓝色碳汇季节性核算及碳交易对策研究（20210104）． |
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| Study on the Impact and Mechanism of the Digital Economy on the Level of High-quality Development of Marine Economy |
| XU Sheng,ZHU Deshuo,WANG Jingwen,LIU Yuhao |
| School of Economics，Ocean University of China;Institute of Marine Development，Ocean University of China |
| Abstract: |
| As an important driving force promoting high-quality development of the economy，the digital economy is gradually empowering the marine sector and has become a crucial engine driving the marine economy towards high-quality development．It is of great significance to explore the impact of the digital economy on the high- quality development of marine economy and research the underlying mechanism within the context of the new era of building a strong maritime nation．The entropy value method is used to measure the digital economy and the highquality development of the marine economy based on the panel data from 11 coastal provinces from 2011 to 2020， to empirically analyze the correlation between them，and expand the study to the spatial dimension．The results show that the digital economy significantly improves the level of high-quality development of the marine economy， demonstrating an obvious positive correlation；industrial structure and the level of local financial development enhance the transmission efficiency of the digital economy，and strengthen its influence effect of the digital economy on the high-quality development of the marine economy；further research finds that，after the digital economy reaches a certain scale，the digital elements diffuse to the neighboring regions，and the digital economy has a spatial spillover effect on the level of high-quality development of marine economy．Finally，the study provides suggestions for improving the investment structure，optimizing financial services and promoting the high-quality development of the marine economy. |
| Key words: Digital economy,High-quality development of marine economy,Coastal provinces（autonomous regions,municipalities directly under the central government）,Spatial spillover effect |
