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The impact of trade openness and innovation in reducing carbon dioxide emissions: evidence from African countries

貿易開放度とイノベーションが二酸化炭素排出削減に与える影響：アフリカ諸国からの証拠 (AI 翻訳)

Human Sciences Research Council

Human Science Research Council SA📚 査読済 / ジャーナル2026-05-22#政策
DOI: 10.14749/32359386
原典: https://doi.org/10.14749/32359386

🤖 gxceed AI 要約

日本語

1990年から2020年までの32のアフリカ諸国を対象に、貿易開放度とイノベーションがCO2排出に与える影響をGMM推定で分析。環境クズネツ仮説の存在を確認し、貿易開放は排出を悪化させる一方、イノベーションと再生可能エネルギーは排出削減に寄与することを示した。グリーン成長のための知識波及と地域統合の重要性を提言。

English

This study examines the impact of trade openness and innovation on CO2 emissions in 32 African countries from 1990 to 2020 using GMM estimation. It confirms the Environmental Kuznets Hypothesis, finds that trade openness exacerbates emissions, while innovation and renewable energy reduce them. It recommends promoting knowledge spillovers and regional integration for green growth.

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

本論文はアフリカ諸国に焦点を当てており、日本国内のGX政策（例：GXリーグ、カーボンプライシング）との直接的な関連性は薄い。しかし、新興国・途上国における排出削減の知見は、日本の国際協力やサプライチェーン全体での排出削減戦略（Scope3）に示唆を与える可能性がある。

In the global GX context

While this paper focuses on African countries, its findings on trade and innovation's role in emissions are relevant to global GX discussions on sustainable trade policies and technology transfer. It adds empirical evidence from a region often underrepresented in climate research, supporting the case for integrating innovation and renewable energy into development strategies.

👥 読者別の含意

🔬研究者:Provides empirical evidence on the Environmental Kuznets Hypothesis and the roles of trade and innovation in African contexts, useful for comparative climate policy studies.

🏛政策担当者:Highlights the need for regional integration and innovation-focused policies to decouple economic growth from emissions in developing regions.

📄 Abstract（原文）

In recent years, environmental sustainability has taken centrestage worldwide among policy discussions and business strategist. Thus, it is unsurprising that SDG13 (Sustainable Development Goal) emphasizes the importance of sustainable economic growth through the reduction of greenhouse gas emissions. This study investigated the impact of trade on carbon dioxide (CO2) emissions in a cross-country panel of 32 African countries from 1990 to 2020, using the Generalized Methods of Moments techniques. Within the context of the Environmental Kuznets Hypothesis, the study estimated the existence of the inverted U-shaped curve to model the relationship between gross domestic product (GDP) and carbon emissions. The control variables were trade openness, renewable energy, innovation, and human capital. The findings show the presence of the Kuznets hypothesis for the group of African countries. The study also showed that trade openness exacerbates emissions, and continued innovations reduce the amount of carbon emissions. Renewable energy produces significantly less carbon emissions, which was substantial in both estimated models. The study suggests promoting economic growth through knowledge spillovers and pursuing regional integration and assimilation of innovation into all stages of development for green growth.

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