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Some remarks on a social network approach to identifying key sectors

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  • Henryk Gurgul
  • Łukasz Lach

Abstract

Ostensibly, certain adaptations of social network theory extend and improve the traditional key-sector approaches. Our analysis of the underlying algebraic properties shows that a social-network-based approach proposed by García Muñiz et al. [(2008) Key Sectors: A New Proposal from Network Theory. Regional Studies, 42, 1013–1030] does not relate final demand and output in ways comparable to key-sector measures that are based on the static Leontief input–output model. Using the most recent IO table for Poland we show that the modified approach can lead to spurious empirical results and, as a consequence, to false policy implications.

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  • Henryk Gurgul & Łukasz Lach, 2018. "Some remarks on a social network approach to identifying key sectors," Economic Systems Research, Taylor & Francis Journals, vol. 30(1), pages 120-135, January.
    • Handle: RePEc:taf:ecsysr:v:30:y:2018:i:1:p:120-135
    DOI: 10.1080/09535314.2017.1365048
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    Cited by:

    1. Gurgul, Henryk & Lach, Łukasz, 2019. "Eco-efficiency analysis in generalized IO models: Methods and examples," MPRA Paper 96604, University Library of Munich, Germany.
    2. Soulixay Hongsakhone & Moinul Islam & Masaru Ichihashi, 2021. "Producing a village input–output table (VIOT) from household survey data: a case study of a VIOT for a rural village in northern Lao PDR," Journal of Economic Structures, Springer;Pan-Pacific Association of Input-Output Studies (PAPAIOS), vol. 10(1), pages 1-24, December.
    3. Chen, Quanrun & Chen, Xikang & Pei, Jiansuo & Yang, Cuihong & Zhu, Kunfu, 2020. "Estimating domestic content in China’s exports: Accounting for a dual-trade regime," Economic Modelling, Elsevier, vol. 89(C), pages 43-54.
    4. Li, Jiawei & Wen, Xiangxi & Wu, Minggong & Liu, Fei & Li, Shuangfeng, 2020. "Identification of key nodes and vital edges in aviation network based on minimum connected dominating set," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 541(C).
    5. Raffaele Giammetti & Alberto Russo & Mauro Gallegati, 2020. "Key sectors in input–output production networks: An application to Brexit," The World Economy, Wiley Blackwell, vol. 43(4), pages 840-870, April.

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