Thirty Vears Road,Integrating a Megacity——Economic Changes inthe Yangtze River Delta Over the Past 30 Years

As one of the most dynamic economic zones in China, the Yangtze River Delta has further increased its economic output,becoming more open to foreign investment and international cooperation over the past 30 years.Its economic stability and coordination have been strengthened;and the process of regional integration continues to accelerate.

On the Economic Performance of Safety Food Production in China： Investigation and Analysis of the Yangtze River Delta

The production of safety food is an important foundation for establishing a Food Quality Safety Management System. The investigation focused on 11 kinds of safety food produced by 11 agricultural enterprises in Jiaxing, a part of the Yangtze River delta region in China. The economic performances of safety foods were also analyzed. The analysis showed that safety food production input was more than that of normal food and had different cost items compared to normal food. The rate of cost overflow was lower than the rate of comparative returns, resulting in the economic performance of safety food being higher than that of normal food. However, there were some problems, such as high quality without high prices. In the production of safety food, we will mainly pay attention to them.

Analysis of the Higher Education Research in the Chengdu-Chongqing Region:A Comparative Perspective Based on Three Major Economic Circles in China

Drawing on literature regarding higher education research retrieved from the CNKI database from 1997 to 2021,this paper used CiteSpace to analyze the current status of higher education research in the Chengdu-Chongqing economic circle.By comparing it with that in the Beijing-Tianjin-Hebei region,the Guangdong-Hong Kong-Macao Greater Bay Area,and the Yangtze River Delta,this paper concluded that the level of higher education research within a region is in line with the level of the region’s economic and social development.As higher education research in the Chengdu-Chongqing economic circle draws more and more attention,its research areas and topics are becoming increasingly diversified.However,by comparison,the research in this region features a late start and lower participation of researchers and research institutions,resulting in insufficient research in both quantity and quality.Therefore,it is essential to encourage more experts and scholars to participate in higher education research in the Chengdu-Chongqing economic circle.Efforts should also be made to strengthen academic exchanges and cooperation between scholars in Chengdu and Chongqing and establish a long-term cooperation mechanism for higher education research between the two cities.Improved higher education research will definitely facilitate the construction of first-class universities,thus providing human capital and intellectual support for the construction of the Chengdu-Chongqing economic circle.

Arsenic distribution and source in groundwater of Yangtze River Delta economic region, China

This thesis focuses Arsenic(As) distribution and occurrence in groundwater of Yangtze River Delta economic region, East China. 2019 groundwater samples were collected to analyze 26 chemical compositions, including As. The Principal Component Analysis(PCA) was used to find out As source in groundwater. The results show that average As concentration in groundwater of this study is 9.33 μg/l, and maximum As concentration is up to 510 μg/l. The variation coefficient is 314.34%. High arsenic phreatic water(>10 μg/l) distributes along the Yangtze River and its estuary. Weak hydrodynamic conditions, wide p H value variation range and deteriorating environment are dominating factors, especially in Yangtze River Delta. The PCA suggests that arsenic in phreatic water is mainly of natural origin. Part of arsenic may directly originate from sediment organics and be related to organics decomposition.

The Strength of Belief:Empirical Research on the Influence of Religion on Economy―An Analysis Based on the Panel Data of Yangtze River Delta Region in China

In recent years,research on economic growth and development has paid more and more attention to the long-term influence of factors,like history and culture on productivity and national economy.It is very meaningful to study the role of religion in economic development as religion can affect value preference,human capital,and professional ethics.This paper uses the panel data of 25 cities in Yangtze River Delta region of China in 11 years(from 2004 to 2014)to study the influence of religious belief on economic growth.Research result shows that religion plays a positive role in promoting economic growth on the whole.In different religions,Christianity has a significant influence on economic growth.The conclusion is consistent in different regressions and has robustness.However,empirical research on other religions cannot come to a consistent and robust conclusion.Considering that China's research is rate in this field,this paper provides a new perspective as an exploratory research.

基于DPSIR模型的城市旅游经济韧性评价与影响因素——以长三角城市群为例

基于DPSIR模型构建旅游经济韧性指标体系,对2009—2021年长三角城市群旅游经济韧性水平进行测度,并分析其演化特征与影响因素,以期为旅游经济韧性提升提供一定决策依据.结果表明:长三角城市群旅游经济韧性呈现“先升后降”的变化趋势,各城市韧性水平整体上呈上升趋势.韧性较高城市主要分布在中东部地区,各城市旅游经济韧性水平间具有一定空间集聚特征.旅游经济韧性受经济发展水平、经济发展结构、旅游发展速度、游客承载量、教育水平、基础设施和政府干预等因素的综合影响,其中旅游发展速度对旅游经济韧性具有明显负面影响,其他因素均具有显著促进作用.

长三角城市群经济韧性测度与分析——基于Shift-Share的经济韧性分解

以长三角城市群27个城市为研究对象,测度2008—2010年抵抗期和2010—2019年恢复期城市群经济韧性水平,并进一步运用Shift-Share分解方法探索长三角城市群经济韧性内在影响机制。研究显示:抵抗期和恢复期中长三角城市群经济韧性均值分别为0.309和0.301,均强于全国层面经济韧性水平;Shift-Share分解后发现竞争力分量对各城市经济韧性水平提升起到决定性作用,抵抗期阶段主要由第二、三产业共同作用影响经济韧性水平;恢复期阶段则以第二产业竞争力为主导力量,同时以第三产业竞争力作为辅助力量。通过实证探究长三角城市群经济一体化发展的规律和特点,为增强中国经济韧性提出相关建议,助力中国经济高质量发展。

环境规制对长三角地区经济高质量发展的影响

选取长三角地区2010—2019年市际面板数据,运用空间杜宾模型和中介效应模型分析了环境规制对经济高质量发展的影响。研究发现:目前环境规制能够显著促进经济高质量发展,二者之间呈现倒“U”型关系;环境规制对经济高质量发展存在显著的正向溢出效应,本地环境规制的实施能够促进经济联系密切地区的经济高质量发展;产业结构升级是环境规制推动经济高质量发展的一条重要路径。因此,应加大环境规制实施力度,充分发挥环境规制的空间外溢正向效应,加快推进产业结构优化升级,以提升长三角地区经济高质量发展水平。

Evolution of coordination degree of eco-economic system and early-warning in the Yangtze River Delta

On the basis of Landsat TM data of the Yangtze River Delta （YRD） Economic Zone in 1991, 2001 and 2008, this article, taking 90 counties in this region as study units, built spatial data transformation models, ecosystem service value （ESV） and coordination degree of eco-economic system （CDES） models. With the aid of ArcGIS9.3, mass grid and vector data has been processed for spatial analyses. ESV and CDES indexes have demonstrated the relationship between economic development and eco-environment system and its evolu- tion characteristics in the researched areas. Furthermore, the indexes have also been used for functional zoning and pattern recognition. Some results can be shown as follows. Firstly, since 1991, land use in the YRD has greatly changed： urban land area has increased primar- ily from original paddy land, dry land, grassland, garden plot and other land. Secondly, the ESV model has proved the deterioration trend of the YRD ecological system from 1991 to 2001 and slower degradation trend during 2001-2008. Also, it is illustrated that land-use conversion from water area and paddy field to urban area and dry land could cause great damage to ecosystem stabilization. Thirdly, GDP in the central and southern parts of the YRD is higher than that in the northern part since 1991. GDP growth rate in the central part is higher than that in the northern part during 1991-2001. This growth rate in the central part is also higher than that in the southern and northern parts of the YRD from 2001 to 2008. Fourthly, the YRD could be categorized into 12 types of subregions in terms of CDES index. According to its spatial characteristic of CDES index value in the study area, eco-economic conflict area with low CDES value which is located in the central part is surrounded by eco-coordinated areas with high CDES values. This illustrates a core-periphery spatial structure exists in the YRD. During 1991-2001, the CDES value implied the convergent de- terioration trend of eco-economic system in the study area; while it gradually stepped into coexistence of divergent deterioration and coordination during 2001-2008. Finally, this paper analyzed five subregions in the YRD, including initially degrading zone, initially coordinative zone, continuously degrading zone, coordination-declined.zone and coordination-promoted zone, based on eco-economic coordination and evolution patterns. And these subregions can be recognized and categorized by spatial transformation model.

Green economic efficiency in the Yangtze River Delta:spatiotemporal evolution and influencing factors

Based on economic-social-resource-environment perspective,which people’s welfare was considered compared with the traditional perspective,using SSU and PP model,spatial analysis method,spatial econometric model to study green economy efficiency(GRE)of 26 Cities in the Yangtze River Delta from 2005 to 2015.The results show the following:Corrected GRE is markedly lower than conventional efficiency;Stage characteristics are obvious of GRE.An overall spatial pattern has emerged of lower efficiency in the east and higher efficiency in the west,and exist clear signs of spatial agglomeration.The spatial Dubin model has abetter fitting effect.The biggest direct effect on local green economic efficiency and spatial spillover effects on nearby areas is proportion of tertiary industry.

Urban land development intensity:New evidence behind economic transition in the Yangtze River Delta,China

Over the past 20 years,China has experienced multiple economic transitions characterized by marketization,globalization,decentralization,and urbanization;as a result,urban land development intensity(ULDI)has become a significant issue for sustainable development.As China’s largest globalized urban area,the rapid socio-economic development of the Yangtze River Delta has created a huge demand for urban land.We apply a theoretical framework for a four-dimensional analysis tool to understand the dynamic evolution of the ULDI in the context of economic transition.It reveals that marketization,globalization,decentralization,and urbanization affect the ULDI in the economic transition of Yangtze River Delta.Marketization,especially the continuous improvement of land marketization,optimizes the spatial allocation of land resources and encourages urban land users to improve ULDI.Globalization promotes the rapid growth of economy and population through an increase in foreign direct investment.In the process of decentralization,local governments rely on developing a mode of land finance,resulting in a disordered urban space and low ULDI.Population growth and agglomeration during urbanization stimulates residents’consumption capacity and promotes economic growth,thus creating a greater demand for urban land.However,a low level of development and utilization restricts the improvement of development intensity.Economic development can improve the level of land-intensive use by promoting the adjustment,optimization,and upgrade of urban industrial structures.

数字经济对长三角地区城乡融合发展的影响分析——基于中介模型的检验

城乡融合发展是实现乡村振兴,全面实现共同富裕的内在要求。基于2013—2022年长三角地区41市的面板数据,探讨数字经济对城乡融合的影响,利用熵值法构建城乡融合指数和数字经济发展水平,运用双向固定效应模型探究数字经济对长三角地区城乡融合的影响。研究结果表明:数字经济的发展对城乡融合起正向作用,并通过多维度的稳健性检验进行了验证;数字经济对长三角地区城乡融合的影响具有区域异质性,其中,浙江表现最好,安徽最后;中介效应检验发现农业经济韧性是数字经济推动城乡融合的重要路径。基于上述分析,提出提升大众数字意识、推进农村数字设施基础化建设、健全长三角区域协调发展机制等政策建议。

环境规制对长三角经济高质量发展的空间效应分析

利用2010—2020年长三角41个地级市面板数据,构建经济高质量发展综合评价体系,熵值法测算长三角经济高质量发展水平,基于动态面板模型和空间杜宾模型分析环境规制对经济高质量发展的影响及空间效应。研究表明:从整体来看,环境规制推动长三角经济高质量发展;从空间效应来看,环境规制对周边城市的经济高质量存在促进作用且作用大小与地区间经济联系紧密程度正相关。据此提出差异化环境规制政策等相关建议,以期推动长三角经济高质量发展。

城市旅游舒适性指标体系构建与实证分析——以长三角地区为例

以舒适性理论为基础构建城市旅游舒适性评价指标,涵盖自然环境、旅游文化、旅游商业、旅游服务和交通出行5个一级指标和31个二级指标,通过空间自相关分析研究长三角地区旅游舒适性及分项舒适性的空间结构,构建旅游经济发展指标,探究城市旅游舒适性与旅游经济发展之间的耦合协调关系.研究发现:(1)长三角地区旅游舒适性水平空间差异较大,整体上呈现北部城市分值低、南部城市分值高的态势.(2)长三角地区各城市的旅游舒适性在空间上呈现集聚效应.(3)长三角地区各市旅游舒适性和旅游经济发展之间尚未达到整体协调阶段,区域内部发展不平衡,有接近一半的城市存在失调现象.长三角地区各城市要依托区域背景借力而为,以区域一体化发展为基准提升当地旅游舒适性.

技术创新对绿色发展的空间效应与传导机制——基于长三角城市群的经验证据

本文以2003~2022年长三角城市群为样本构建绿色发展综合评价指标,采用空间杜宾模型和中介效应检验探究技术创新对城市绿色发展的空间效应与传导机制。结果显示:(1)技术创新对城市绿色发展具有显著的正向促进作用;(2)技术创新对城市绿色发展的影响存在空间异质性,非都市圈城市技术创新的直接效应显著,但都市圈城市技术创新的直接效应有所减弱且溢出效应不显著;非资源型城市技术创新的直接效应和溢出效应均显著为正,资源型城市技术创新的直接效应和溢出效应均不显著;(3)技术创新通过节能减排效应和产业升级效应对城市绿色发展产生积极影响。未来,长三角城市群宜在鼓励企业绿色技术创新、建立地区协作机制、发挥都市圈城市和非资源型城市的创新辐射带动作用方面重点发力,以促进全区域高质量发展迈入新阶段。

成渝地区双城经济圈与长三角一体化发展产业创新协作:难点、成因及优化路径

区域协调发展战略是党中央作出的重大战略部署。实现成渝地区双城经济圈和长三角一体化发展两大国家区域重大战略的产业创新协作是落实区域协调发展战略的重要举措之一。从区域发展水平、产业创新载体和产业创新主体等视角探讨两大区域产业创新协作的难点和障碍,并从体制机制、政策体系、营商环境和要素配置等方面分析成因。最后,提出实施产业创新协作六大工程、加强产业发展协同联动、提升产业“四链”融合质效和打造产业创新协作共同体等优化产业创新协作的路径。

长三角城市群经济极化效应空间分布与自相关特征分析

本文以2016—2020年长江三角洲城市群的26个城市为例,对长三角三省一市城市群的经济极化指数与区域经济极化效应的城市贡献度进行测算,运用空间自相关等方法对城市经济极化效应进行分析,以期对长三角区域经济的发展提供参考。研究认为:长江三角洲城市群的经济极化水平呈波折下降趋势;长三角地区经济极化贡献度极处于多核心分布;经济极化贡献度具有空间正相关特征,局部自相关以H-H和L-L为主,空间分布较为集聚,并基于以上结论提出建议,以供参考。

双重异质性视角下城市群经济韧性的演化特征及其影响机制研究——以长三角为例

基于双重异质性视角,分析2007—2020年长三角41个城市经济韧性的演化特征及其影响机制。研究表明:长三角城市群不同阶段的经济韧性空间差异显著,且冷热点聚集区域出现了组团式动态转换;面对外来冲击时,固定投资、产业多样化、国企对经济韧性解释力较强,而出口贸易解释力波动较大;在结构调整期时,固定投资对经济韧性支撑作用减弱,三产占比、财政支撑、技术创新及人力资本水平的提高加速了产业结构升级,提高中长期经济韧性;政府通过塑造产业结构及改善技术等要素错配程度影响经济韧性。

长三角地区科技创新与经济水平的耦合研究

文章基于资源投入、市场产出、环境支持、社会效益四个维度构建科技创新评价指标体系,基于发展水平、发展结构、发展质量三个维度构建经济发展评价指标体系,借助熵值法测度长三角地区科技创新与经济水平,运用耦合协调度模型分析长三角地区科技创新与经济水平之间的互动协调关系。结果表明:长三角地区科技创新能力增速明显,经济水平呈波动上升,两者具有良好的耦合协调关系;子系统之间的耦合协调度存在明显异质性,且区域差异较为显著。

长三角中心城市群生态环境与社会经济耦合协调发展及其影响因素研究

环境与经济耦合协调发展是实现区域可持续发展的必由之路。通过构建评价指标体系,采用多种权重评价法,结合博弈论组合赋权法和耦合协调度模型对2015和2020年长三角27个中心城市群生态环境与社会经济耦合协调度及其影响因素进行研究。结果表明,森林覆盖率和高等教育分别在生态环境和社会经济指标体系中权重最高。对比2015年,2020年区域生态环境质量和社会经济发展指数提升显著,分别有77.78%和88.90%的城市在生态环境和社会经济发展中呈现上升趋势。在空间分布上,区域生态环境发展空间自相关性增强,空间集聚效应显著,但社会经济发展空间集聚度呈现略微下降趋势。环境经济耦合协调发展较好的城市由区域中部扩展至区域中部和南部,其中,浙江省环境经济耦合协调发展提升显著。中心城市群没有耦合失调的城市,但高度耦合协调发展的城市数量仍相对较少。结构方程模型分析表明,森林覆盖率、大气环境和经济结构对区域环境经济耦合协调发展的影响尤为显著,因此在提升区域森林覆盖率、控制大气污染和增加单位土地面积收入等具体措施上加大实施力度,有助于协同推进区域经济高质量发展与生态环境的高水平保护。