Accelerator or Not? The Impact of Port Integration Reform on Carbon Emissions with Evidence from Chinese Ports
促進か抑制か？港湾統合改革がCO2排出に与える影響：中国港湾の実証分析 (AI 翻訳)
Yuxin Dai, Jiaxin Suo, Jinpei Li, Di Yao
🤖 gxceed AI 要約
日本語
本研究は、中国の港湾統合改革が炭素排出に及ぼす影響を、55港湾都市のパネルデータとDID分析により評価。統合改革は炭素排出を有意に削減し、地域特性により効果が異なることを発見。グリーン技術革新が媒介効果を持つことを示唆。港湾政策の低炭素化における有効性を実証。
English
This study evaluates the carbon emission reduction effect of port integration reforms in China using panel data from 55 port cities and a multi-period DID approach. It finds that integration reforms significantly reduce emissions, with heterogeneous effects across regions, port sizes, and regulatory environments. Green technological innovation mediates the effect. Provides dynamic causal evidence on how governance reforms shape green development outcomes.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本でも港湾統合や物流効率化はGX政策の一部。SSBJの開示基準ではサプライチェーン排出量（Scope3）の算定が求められており、港湾統合による排出削減効果は日本企業のサプライチェーン脱炭素戦略に示唆を与える。また、日本の港湾政策（例：国際コンテナ戦略港湾）との比較が可能。
In the global GX context
This paper offers causal evidence on how institutional reforms in port governance can drive carbon reductions, relevant to global supply chain decarbonization and climate disclosure (Scope 3 under ISSB/CSRD). The heterogeneous effects across regions and port sizes provide lessons for designing differentiated transition policies in port infrastructure globally.
👥 読者別の含意
🔬研究者:Provides causal evidence on port integration and carbon emissions using DID, contributing to literature on governance reforms and green development.
🏢実務担当者:Offers insights for port operators and logistics firms on how integration reforms can reduce carbon footprint, informing corporate decarbonization strategies.
🏛政策担当者:Highlights the importance of tailoring port integration policies to local conditions; shows that integration is effective but heterogeneous, guiding differentiated policy design for low-carbon transition.
📄 Abstract（原文）
Port integration reforms constitute an important institutional arrangement for promoting green development in the shipping sector and achieving China’s carbon peaking and carbon neutrality goals. Assessing their carbon-mitigation effect is crucial for improving the governance framework of port integration and promoting high-quality port development. Using panel data for 55 Chinese port cities from 2011 to 2022, this study exploits the staggered implementation of port integration strategies as a quasi-natural experiment and applies a multi-period Difference-in-Differences (DID) approach to estimate their effects on port carbon emissions. The results indicate that port integration reforms significantly reduce carbon emissions, implying that integration acts as a substantive driver for low-carbon transformation. Heterogeneity analysis shows that the emission-abatement effect is stronger for ports outside the Yangtze River Economic Belt, coastal and southern ports, large-scale and small-scale ports, regions with weaker environmental regulation, cities with more advanced industrial structures, and major national hub ports. In contrast, the policy effect is relatively muted for medium-sized ports, highly regulated regions, cities with less advanced industrial structures, and non-core hub ports, where port integration delivers merely weak marginal emission reduction effects. Further mechanism tests reveal that green technological innovation plays a certain mediating role. This study contributes to the literature by providing dynamic causal evidence on how port governance reforms shape green development outcomes. It also offers policy implications for designing differentiated port integration strategies that align with regional development conditions and national low-carbon transition objectives.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/systems14060662first seen 2026-06-13 05:02:56
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