Journal
ANNALS OF OPERATIONS RESEARCH
Volume -, Issue -, Pages -Publisher
SPRINGER
DOI: 10.1007/s10479-022-05133-0
Keywords
Multilayer networks; Embodied energy; Multi-dimensional HITS; Energy security
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Funding
- Fondo di Ateneo Quota Competitiva 2021, University of Milano - Bicocca
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In this paper, a methodology suitable for analyzing the global embodied energy flow through a complex network approach is proposed. The multilayer framework based on environmentally extended input-output analysis allows the identification of the different roles of sectors and economies in the system. The use of hub and authority scores, adapted from the Kleinberg algorithm, helps identify key sectors and economies. Numerical analysis based on multi-region input-output tables shows the meaningful insights provided by the proposed approach.
In this paper we propose a methodology suitable for a comprehensive analysis of the global embodied energy flow through a complex network approach. To this end, we extend the existing literature providing a multilayer framework based on the environmentally extended input-output analysis. The multilayer structure, with respect to the traditional approach, allows us to unveil the different role of sectors and economies in the system. In order to identify key sectors and economies, we make use of hub and authority scores, by adapting to our framework an extension of the Kleinberg algorithm, called Multi-Dimensional HITS (MD-HITS). A numerical analysis based on multi-region input-output tables shows how the proposed approach provides meaningful insights.
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