How Do Changes in Efficiency Affect Road Transportation Carbon Emissions? Efficiency-Biased Production-Theoretical Decomposition Analysis
効率の変化は道路交通の二酸化炭素排出量にどのように影響するか？効率バイアス生産理論分解分析 (AI 翻訳)
Xiao Liu, Yumeng Dai, Fei Huang, Dequn Zhou
🤖 gxceed AI 要約
日本語
本研究は、中国30省の道路交通CO2排出に対し、効率バイアス生産理論分解分析を初めて適用。2010-2020年のデータから、全要素生産効率は2018年まで上昇したがパンデミックで低下、地域差が顕著。規模拡大が排出増加の主因で、効率改善は排出削減に寄与するが、地域ごとに有効な要素が異なる（西部は資本効率、東部は労働効率）。これらの結果は、中国のダブルカーボン目標達成に向けた地域別政策の重要性を示す。
English
This study pioneers an efficiency-biased production-theoretical decomposition analysis to assess road transport carbon emissions in 30 Chinese provinces (2010-2020). Findings show that total factor production efficiency rose until 2018 then declined due to the pandemic, with regional disparities. Scale expansion was the main driver of emission increases, while efficiency improvements mitigated emissions, particularly capital-biased efficiency in the west and labor-biased in the east. The results inform region-specific policies for China's dual carbon goals.
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
中国の運輸部門に特化した研究だが、部門別排出削減ポテンシャルの評価手法として、日本の運輸脱炭素政策（物流効率化、EV普及）にも応用可能性がある。ただし、SSBJや有報との直接的な関連は薄く、日本固有の文脈への適用には調整が必要。
In the global GX context
This paper offers a rigorous decomposition method for transport carbon emissions, relevant to global sectoral decarbonization efforts. While China-specific, the efficiency-biased approach can be adapted to other countries' road transport inventories and inform efficiency-focused policy design under frameworks like the Paris Agreement.
👥 読者別の含意
🔬研究者:The efficiency-biased production-theoretical decomposition framework provides a novel methodology for analyzing factor-specific contributions to transport emission changes, applicable to other sectors and regions.
🏢実務担当者:Transport and logistics companies can use the regional efficiency insights to prioritize investments in capital upgrades (west) or labor training (east) for emission reductions.
🏛政策担当者:The study highlights the need for regionally differentiated policies in transport decarbonization, relevant for national and subnational climate action plans.
📄 Abstract（原文）
Amid global climate mitigation efforts, China’s road transportation sector faces escalating tensions between persistent transportation scale growth and stringent decarbonization commitments. Existing studies have shown that efficiency improvement—defined as the ability to maximize transport output while minimizing resource inputs and reducing undesirable outputs—is one of the important means to achieve carbon emission reduction. However, the quantitative contributions of efficiency improvement in the change of road transport carbon emissions (RTC) still lack a systematic evaluation. This study pioneers an efficiency-biased production-theoretical decomposition analysis framework to investigate the role of efficiency in RTC changes across 30 Chinese provinces during 2010–2020. Key empirical findings include: (1) total factor production efficiency (TFPE) in road transportation increased from 2010 to 2018 but receded amid the pandemic, exhibiting regional disparities—the eastern region registered the lowest TFPE (e.g., Beijing and Shanghai < 0.6), whereas the central region (e.g., Hebei = 1) achieved optimal performance; (2) the expansion of the transportation scale constituted the principal impetus for RTC escalation, while potential energy intensity and TFPE emerged as key mitigating forces—among factor-specific efficiency effects, except for transport output biased efficiency effect, other factor-biased efficiency effects all contributed to reducing RTC; and (3) the potential for efficiency-driven emission reduction varied by region—capital-biased efficiency predominated in the west (32.9% annual average), labor-biased efficiency in the east (33.4%), while energy and carbon-biased efficiencies exhibited limited potential because of technological entrenchment. These results emphasize the need for region-specific policies: western China should prioritize green infrastructure upgrades, while eastern regions should leverage intelligent transport systems and labor training. The findings provide empirical support for optimizing emission control frameworks and inform strategies to harness efficiency potential for achieving China’s dual carbon goals.
🔗 Provenance — このレコードを発見したソース
- crossref https://doi.org/10.1177/03611981261443295first seen 2026-05-16 04:38:33 · last seen 2026-05-16 04:39:13
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