气候变化领域集成服务门户(CCPortal): A functional index model for dynamically evaluating China's energy security

CCPortal

DOI	10.1016/j.enpol.2020.111706
	A functional index model for dynamically evaluating China's energy security
	Wang D.; Tian S.; Fang L.; Xu Y.
发表日期	2020
ISSN	03014215
卷号	147
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. © 2020 Elsevier Ltd
关键词	China Dynamic weighting Energy security index Functional data analysis
英文关键词	Continuous time systems; Energy policy; Energy utilization; Time domain analysis; Dynamic assessment; Dynamic information; Energy security indices; Functional data analysis; Functional information; Renewable energy technologies; Sensitive analysis; Three dimensions; Energy security; alternative energy; energy policy; energy use; numerical model; oil supply; sensitivity analysis; state role; China
语种	英语
来源期刊	Energy Policy
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204911
作者单位	School of Management, China University of Mining and Technology, Xuzhou, 221116, China; Data Mining Research Center, Xiamen University, Xiamen, 361005, China
推荐引用方式 GB/T 7714	Wang D.,Tian S.,Fang L.,et al. A functional index model for dynamically evaluating China's energy security[J],2020,147.
APA	Wang D.,Tian S.,Fang L.,&Xu Y..(2020).A functional index model for dynamically evaluating China's energy security.Energy Policy,147.
MLA	Wang D.,et al."A functional index model for dynamically evaluating China's energy security".Energy Policy 147(2020).