首页|长三角城市群政策能否促进绿色高质量发展?基于数字经济和绿色全要素生产率的证据

长三角城市群政策能否促进绿色高质量发展?基于数字经济和绿色全要素生产率的证据

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城市群应满足经济增长和绿色发展的双重要求,提高绿色发展效率迫在眉睫.因此,我们利用渐进双重差分模型(DID)分析了长三角城市群政策对数字经济和绿色全要素生产率的影响.本研究的贡献是:评估了长三角城市群政策对绿色高质量发展的长期影响;并基于"波特假说"视角,考察了城市群政策对数字经济和绿色全要素生产率影响的异同.结果显示,长三角城市群政策提高了城市数字经济水平,但明显抑制了绿色全要素生产率.这说明该政策对长三角地区绿色高质量发展的整体影响仍处于"弱波特假说"状态,城市群政策激发的技术创新和效率提升不足以显著提高绿色全要素生产率,"强波特假说"不成立.异质性分析表明,该政策对中心城市、大中城市和创新型城市的绿色高质量发展的促进作用更为明显.城市公共服务供给水平具有门槛效应,当其发展到一定规模时,长三角城市群政策对数字经济和绿色全要素生产率有明显的积极影响.
Can the Yangtze River Delta Urban Agglomeration Policy Promote Green High-quality Development?Evidence from the Digital Economy and Green Total Factor Productivity
Urban agglomerations should meet the dual requirements of economic growth and green development,and there is currently an urgent need to improve the efficiency of green development.Therefore,we analyzed the impact of the Yangtze River Delta Urban Agglomeration(YRDUA)policy on the digital economy(DE)and green total factor productivity(GTFP)using the time-varying difference in difference model(DID).The marginal contribu-tion of this study is an evaluation of the long-term effect of the YRDUA policy on green high-quality development.Based on the perspective of the"Porter Hypothesis",this study examined the similarities and differences in the impacts of urban agglomeration on DE and GTFP.The results show that the policy promotes the urban DE index,but significantly inhibits urban GTFP.This means that the overall impact of urban agglomeration policy on green high-quality development in the Yangtze River Delta(YRD)is still in the"weak Porter Hypothesis"state,the tech-nological innovation and efficiency improvement stimulated by urban agglomeration policies are not enough to sig-nificantly improve GTFP,and the"strong Porter Hypothesis"is not tenable.In addition,the heterogeneity analysis shows that the policy has a more obvious role in promoting the green high-quality development of central cities,large and medium-sized cities and innovative cities.The level of urban public service supply shows a threshold effect.When it develops to a certain scale,the urban agglomeration policy has significant positive impacts on both DE and GTFP.

Yangtze River Delta Urban Agglomerationdigital economyGTFPtime-varying DIDgreen high-quality development

靳财、惠宝航、李坦

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安徽农业大学经济管理学院,合肥 230036

长三角城市群 数字经济 绿色全要素生产率 渐进DID 绿色高质量发展

国家自然科学基金Key Program of the Department of Education of Anhui ProvinceResearch Project on Humanities and Social Sciences for Higher Education of Anhui Province

71873003SK2020A0131YJS20210256

2024

10.5814/j.issn.1674-764x.2024.01.009

资源与生态学报(英文版)
中国科学院地理科学与资源研究所

资源与生态学报(英文版)

CSTPCD
影响因子：0.388
ISSN：1674-764X
年,卷(期)：2024.15(1)
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