環境に関するクズネッツ曲線仮説は,すべての国に対して有効ですか? バイアスを修正したダイナミックパネルデータモデルからの新しい洞察
Hasraddin Guliyev1, Ilgar Seyfullayev1
1Azerbaijan State University of Economics, International Magistrate and Doctorate Center, Baku, AZ1007, Azerbaijan.
Journal of environmental management
|August 27, 2025
まとめ
経済成長は最初 二酸化炭素の排出量を増加させるが,この関係は国の所得レベルによって異なる. 持続可能な開発を促進するために,特に発展途上国では,成長と排出を切り離すための政策を策定する必要があります.
科学分野:
- 環境経済学
- 持続可能な開発
- 経済学
背景:
- 環境に関するクズネッツ曲線 (EKC) 仮説は,経済成長と環境の悪化の間の反転したU形の関係を示している.
- この関係を理解することは,効果的な環境政策を策定し,持続可能な開発目標を達成するために不可欠です.
- 以前の研究では様々な結果が出たため,様々な国の所得層を対象としたさらなる調査が必要となった.
研究 の 目的:
- 環境に関するクズネッツ曲線仮説を1995年から2018年までの147カ国で実証的に検証する.
- 経済成長,工業化,外国直接投資,グローバリゼーションが二酸化炭素排出量に及ぼす影響を検証する.
- 経済成長と環境への影響を切り離すための収入特有の政策の発展を促す.
主な方法:
- 安定したエコノメトリック分析のためにバイアス修正ダイナミックパネルデータモデルを使用した.
- 1人当たりのGDPを主な説明変数として含めた.
- 産業化,外国直接投資,グローバリゼーションを制御変数として組み込みました.
主要な成果:
- 高所得国と中所得国の逆のU型EKCが確認され,特定の経済上の値を超えると排出量が減少することを示しています.
- 低所得国のU型パターンが観察され 経済成長に伴い排出量が増加し続けることを示唆しています
- 産業化 (高所得),外国直接投資 (低所得・中所得),グローバル化 (低所得) が排出量に大きく影響していることが判明した.
結論:
- 温室効果ガスの排出は,すべての所得層において,特に中低所得国において高い水準にある.
- 高所得国は産業排出量を管理し,低所得国と中所得国は規制能力とクリーン技術移転の支援を必要としています.
- 長期的な戦略と国際協力は,政策の漸進的な影響と,高炭素開発の軌道を回避するために不可欠です.
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