GSTDTAP  > 气候变化
DOI10.1016/j.enpol.2020.111706
A functional index model for dynamically evaluating China's energy security
Deqing Wang, Sihua Tian, Lei Fang, Yan Xu
2020-09-16
发表期刊Energy Policy
出版年2020
英文摘要

With the aim of overcoming the shortcomings of the conventional energy security index (ESI) used in dynamic assessment of energy security, the present study introduces the functional data analysis method into ESI construction and establishes a dynamic energy security index (DESI) model. The DESI is a generalization of the conventional ESI with a dynamic weighting mechanism in a continuous time domain. In the DESI model, every normalized indicator within three dimensions — energy supply, energy consumption and environmental — is smoothed into a continuous curve, and the changes in its importance are reflected objectively by functional information entropy weights with dynamic information updating. Whereas the three sub-index curves with different importance are distinguished via assigning different weights according to the special national circumstances. The methods of generating a curve for single indicator, sub-index curves, and dyna mic weighting curves are discussed in detail, and the robustness of weighting and aggregation choice in DESI is tested using sensitive analysis. Results of applying DESI to evaluate China's energy security show that the overall changes of China's energy security have undergone a W-shaped fluctuation. To ensure consistently high levels of energy security, the government should focus on oil supply and renewable energy technologies.

领域气候变化
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/295294
专题气候变化
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GB/T 7714
Deqing Wang, Sihua Tian, Lei Fang, Yan Xu. A functional index model for dynamically evaluating China's energy security[J]. Energy Policy,2020.
APA Deqing Wang, Sihua Tian, Lei Fang, Yan Xu.(2020).A functional index model for dynamically evaluating China's energy security.Energy Policy.
MLA Deqing Wang, Sihua Tian, Lei Fang, Yan Xu."A functional index model for dynamically evaluating China's energy security".Energy Policy (2020).
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