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A digital path to carbon neutrality: Heterogeneous green innovations and their spatial impact for Chinese cities

デジタル経済によるカーボンニュートラルへの道:中国都市における異種グリーンイノベーションとその空間的影響 (AI 翻訳)

Tingting Bai, Dong Xu, Muhammad Ali Nasir

Technological Forecasting and Social Change📚 査読済 / ジャーナル2026-04-14#政策Origin: CN
DOI: 10.1016/j.techfore.2026.124679
原典: https://doi.org/10.1016/j.techfore.2026.124679

🤖 gxceed AI 要約

日本語

デジタル経済(DE)が低炭素開発(LCD)に与える影響を、異種グリーンイノベーションの媒介効果と空間的波及効果から分析。DEとLCDの非線形関係、グリーンイノベーションの種類による差異、近隣都市へのU字型波及効果を実証。

English

This study examines the nonlinear impact of digital economy on low-carbon development in Chinese cities through heterogeneous green innovation. It finds that invention, source-control, and enterprise green innovations are key mediators, and spatial spillover effects on neighboring cities follow a U-shaped pattern within 100–400 km.

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

中国のデジタル経済とグリーンイノベーションの連関は、日本のGX政策(特にDXとGXの統合)にも示唆を与える。ただし、中国固有の都市データに基づくため、直接的な政策応用には注意が必要。

In the global GX context

This paper provides empirical evidence on how digital economy can spur green innovation for low-carbon transition, relevant to global discussions on digitalization and decarbonization. The spatial spillover findings offer insights for regional policy coordination.

👥 読者別の含意

🔬研究者:This study provides a rigorous empirical framework linking digital economy, heterogeneous green innovation, and low-carbon development, with spatial econometric methods.

🏛政策担当者:Policymakers can learn about the nonlinear and spatial effects of digital economy on low-carbon transition, informing regional strategies.

📄 Abstract(原文)

With the accelerating growth of the digital economy, digital technology—as a type of general-purpose technology—creates a more inclusive and open environment for innovation, thereby facilitating the shift toward a low-carbon economy by promoting green innovation. However, we know little about whether there are differences in the roles of various types of green innovation. Therefore, this study evaluates the impact of DE on low-carbon development (LCD) through heterogeneous green innovation. The results show that DE has a significant nonlinear effect on LCD, with an initial suppressing effect that turns positive and strengthens as DE develops. Green innovation is a crucial mechanism through which DE promotes LCD. Moreover, compared to other types of green innovation, invention green innovation, source-control green innovation, and enterprise green innovation play a more significant role in this process. From a spatial perspective, the spillover effect of DE on LCD of neighbouring cities exhibits a shift from a “neighbour-beggar” to a “neighbour-companion” dynamic, demonstrating a U-shaped change. This spillover effect diminishes as geographic distance increases and is significant only within a range of 100–400 km. The green innovation spillover is a key mechanism driving this U-shaped transformation. Our findings offer valuable theoretical and practical insights for other developing countries undergoing a low-carbon transition. • This study explores how digital economy influences low-carbon development (LCD) through heterogeneous green innovation. • It identifies a nonlinear relationship between digital economy development and LCD. • The 3SLS method is employed to test the mediating role of green innovation in the DE-LCD link. • Invention-based, source-control, and enterprise-led green innovations are identified as key mediators. • A U-shaped spatial spillover effect of DE on neighbouring cities' LCD is observed.

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