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Measuring Regional Eco-Efficiency in China (2003-2016): A "Full World" Perspective and Network Data Envelopment
Weizhen Ren1, Zilong Zhang1,2,3, Yueju Wang1
1Key Laboratory of Western China's Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
Summary
China's eco-efficiency remains low, with significant regional disparities. While production stage efficiency declined, social input and environmental governance stages improved, indicating a need for targeted development strategies.
Area of Science:
- Ecological economics
- Environmental science
- Regional economics
Background:
- Eco-efficiency is crucial for green and high-quality development, requiring coordinated economic, environmental, and social progress.
- Measuring eco-efficiency necessitates analysis of both total factor inputs and process dynamics.
Purpose of the Study:
- To construct a theoretical framework for a composite economic-environmental-social system reflecting human welfare and sustainability.
- To evaluate the overall and staged eco-efficiency of China's provinces using a network data envelopment analysis (DEA) model.
- To analyze the spatiotemporal characteristics and influencing factors of eco-efficiency changes.
Main Methods:
- Network data envelopment analysis (DEA) for staged eco-efficiency evaluation.
- Geographically weighted regression (GWR) for analyzing spatial heterogeneity of influencing factors.
Main Results:
- Overall eco-efficiency in China is low and regionally varied, with the East leading. Production stage efficiency declined, while social input and environmental governance stages improved.
- Staged efficiency levels: social input > environmental governance > production.
- Spatial heterogeneity in influencing factors was observed, with economic growth, marketization, and social input levels showing varying impacts across regions and stages.
Conclusions:
- China's eco-efficiency requires improvement, particularly in the production stage.
- Targeted regional strategies are needed to address disparities and enhance overall eco-efficiency.
- Understanding the spatially differentiated impacts of influencing factors is key for effective policy interventions.
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