摘要
高水平开放是实现区域协调发展和中国式现代化的重要途径。本文基于开放规模与质量、开放基础设施和开放潜力三个维度构建对外开放评价指标体系,利用熵值法、Dagum基尼系数等多种方法对2004—2021年长江经济带108个地级市对外开放水平进行了测度与分析。研究发现:(1)长江经济带的对外开放水平不断提升且呈现“下游>中游>上游”的开放格局,上游地区的开放主要受制于开放规模与质量、开放潜力,中游地区则受制于开放基础设施,中游和上游地区三个维度的发展均落后于下游地区且开放潜力差距进一步扩大;(2)对外开放总体存在较大差异但呈缩小态势,超变密度替代区域间差异成为总体差异的主要来源,上游和下游之间及上游区域内的开放差距最为明显;(3)对外开放的空间分散性持续增强,整体及上、下游区域均存在一定的极化现象,下游城市已形成高水平开放的空间高度集聚,大多数中游和上游城市则开放水平低且难以实现向上跃迁,中心城市的虹吸效应有所弱化。
High-level opening up is an important way to achieve coordinated regional development and Chinesestyle modernization.This study constructs an evaluation index system for foreign opening-up based on three dimensions:scale and quality of opening-up,opening-up infrastructure,and opening-up potential.The entropy method,Dagum Gini coefficient and other methods are used to measure and analyze the opening up level of 108 prefecture-level cities in the Yangtze River Economic Belt from 2004 to 2021.The study finds that:(1)The level of opening up of the Yangtze River Economic Belt continues to increase and presents an open pattern of downstream>midstream>upstream.The opening up of the upstream region is mainly subject to the degree of openness and open potential,while the midstream region is subject to open infrastructure.Both midstream and upstream areas lag behind downstream areas in all three dimensions,with the gap in opening-up potential further widening.(2)There is a big difference in the overall opening up,but it shows a narrowing trend.The super variable density replaces the inter-regional difference as the main source of the overall difference,and the opening gap between the upstream and downstream and within the upstream region is the most obvious.The spatial dispersion of opening to the outside world continues to increase,and there is a certain polarization phenomenon in the whole,upstream and downstream regions.The downstream cities have formed a spatially concentrated high-level openingup cluster,while most of the middle and upstream cities have a low level of openness and face challenges in upward mobility,and the siphon effect of the central cities has been weakened.
作者
马飒
杨万露
黄建锋
MA Sa;YANG Wanlu;HUANG Jianfeng(Nantong University,Nantong,Jiangsu 226019,China)
出处
《对外经贸实务》
2024年第7期16-24,44,共10页
Practice in Foreign Economic Relations and Trade
基金
国家社会科学基金一般项目“数字技术对国际产业分工格局的重塑与对策研究”(项目号:21BJL106)。
关键词
对外开放
区域差异
时空演变
长江经济带
opening up
regional disparities
spatial-temporal evolution
Yangtze River Economic Belt
