Green Transportation-Enabled High-Quality Economic Development in the Yangtze River Economic Belt: Regional Disparities and Dynamic Characteristics

Cheng Li, Shiguo Deng (), Yangzhou Li and Liping Zhu
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Cheng Li: College of Air Transportation, Shanghai University of Engineering Science, Shanghai 201600, China
Shiguo Deng: College of Air Transportation, Shanghai University of Engineering Science, Shanghai 201600, China
Yangzhou Li: College of Air Transportation, Shanghai University of Engineering Science, Shanghai 201600, China
Liping Zhu: College of Air Transportation, Shanghai University of Engineering Science, Shanghai 201600, China

Sustainability, 2025, vol. 17, issue 13, 1-24

Abstract: The Yangtze River Economic Belt (YEB), serving as a pivotal transportation corridor connecting eastern and western China and a national strategic development hub, plays a central role in driving high-quality economic development (HQAED) across the country. Based on the new development paradigm with emphasis on green transformation and transportation integration, this study proposes a comprehensive evaluation framework for an HQAED index (HQAED) across five core dimensions. Employing the entropy-weighted CRITIC method to quantify provincial HQAED values, combined with Dagum–Gini coefficient analysis to examine regional inequality patterns and determinants, and complemented by kernel density estimation (KDE) for temporal dynamics analysis, this research reveals four key findings: (1) There are significant disparities in HQEDI levels across the YEB, with a clear east–west gradient: the lower reaches > middle reaches > upper reaches. (2) While the dimensions of green development and shared development have shown steady growth despite initial disadvantages, the openness dimension faces structural challenges that require particular attention. (3) The overall Gini coefficient fluctuates between 0.068 and 0.094, indicating moderate regional disparities with relatively limited inequality. (4) The rightward shift in the HQEDI kernel density curves confirms overall progress, but also highlights widening disparities in the upstream regions and growth stagnation in the midstream areas. Practically, the entropy–CRITIC fusion methodology offers a transferable framework for emerging economies measuring sustainability-transition progress, while the quantified “green transportation empowerment” effects provide actionable levers for policymakers to optimize ecological compensation mechanisms and cross-regional infrastructure investments.

Keywords: high-quality economic development index (HQEDI); entropy-weighted CRITIC method; Yangtze River Economic Belt (YEB) (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2025
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