中国沿海地区海洋经济效率时空演化及影响因素分析

为展现中国沿海地区海洋经济效率时空演变现状,并根据其具体原因提出针对性对策建议,促进中国海洋经济可持续发展,本文基于考虑非期望产出的三阶段超效率SBM-Global模型、标准差椭圆和重心坐标方法,对中国沿海11个省市2000—2015年海洋经济效率进行测算和时空对比分析。研究发现：①与一阶段相比,三阶段海洋经济效率整体上升,各省市排名出现不同程度变动;②时间演变上,全国各沿海地区海洋经济效率呈上升趋势,绝对差异和相对差异都不断变大;③空间演变上,全国标准差椭圆呈东北-西南格局分布,面积由小变大,效率分布由收缩趋势变为分散趋势,最终呈北、中、南三级格局分布,与三大海洋经济圈分布相吻合;三大海洋经济圈标准差椭圆面积都逐渐缩小,效率分布出现极化现象;④海洋经济区位熵、海洋科研人力资本、海洋环保技术水平与海洋经济效率之间存在非线性关系;陆域经济发展水平、海洋产业结构水平、政府对海洋科技支持力度、海洋经济政策力度对海洋经济效率呈显著正影响;对外开放水平对其影响不显著。

Spatio-temporal evolution and influencing factors of marine economic efficiency in coastal areas of China

Based on the three stage super-efficient SBM-Global model, standard deviation ellipse and centroid coordinate method, the marine economic efficiency of 11 coastal provinces and cities of China in 2000-2015 years is calculated and analyzed with the time and space. Research discovery: ① Compared with the first stage, the efficiency of marine economy in the third stage has increased overall, and the ranking of provinces and cities has changed differently. ② In the evolution of time: The efficiency of marine economy in all coastal areas of China has been on the rise, and the absolute and relative difference has been increasing and the relative difference changes relatively smooth. ③ In space evolution: The national standard deviation ellipse was distributed in the Northeast-Southwest pattern and its area increased from small to large. The efficiency distribution changes from the contraction trend to the dispersion trend and finally in the three level pattern of North, Middle and South, which is in accordance with the three major marine economic circles. The standard deviation ellipse area of the three major marine economic circles is gradually reduced, and polarization appears in the efficiency distribution. ④ There is a nonlinear relationship between development level of land area economy, marine economic location entropy, human capital of marine scientific research, marine environmental protection technology level and marine economic efficiency; land economic development level, the level of marine industrial structure, the government's support for marine science and technology has a significant positive impact on it, and the level of opening to the outside world has no significant impact on it.