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Dynamic risk spillover effect and path of risk transmission across industrial sectors in China during COVID-19 epidemic

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  • Lin Ling
  • Hayat Khan
  • Jiang Lingwei
  • Li Qiumei
  • Zhang Zuominyang
  • Itbar Khan

Abstract

Understanding the dynamic link between the development of COVID-19 pandemic and industry sector risk spillovers is crucial to explore the underlying mechanisms by which major public health events affect economic systems. This paper applies ElasticNet method proposed by Diebold and Yilmaz (2009, 2012, 2014) to estimate the dynamic risk spillover indicators of 20 industrial sectors in China from 2016 to 2022, and systematically examines the impact of industry risk network fluctuations and the transmission path caused by COVID-19 shock. The findings reveal that risk spillovers of Chinese industries show a dynamic change of "decline-fluctuation-rebound" with the three phases of COVID-19 epidemic. At the beginning of the epidemic, machinery and equipment, paper and printing, tourism and hotels, media and information services, and agriculture were the exporters of epidemic risk, while materials, transportation equipment, commercial trade, health care, and environmental protection were the importers of epidemic risk; However, as the epidemic developed further, the direction and effect of risk transmission in the industry was reversed. Examining the network characteristics of the pair sectors, we found that under the epidemic shock, the positive risk spillover from tourism and hotels, culture, education and sports to consumer goods, finance, and energy industries was significantly increased, and finance and real estate industries were affected by the risk impact of more industries, while the number of industries affected by information technology and computer industry was significantly reduced. This paper shows that there is inter-industry risk transmission of the COVID-19 epidemic shock, and the risk transmission feeds back in a cycle between industries as the epidemic develops, driving the economy into a vicious circle. The role of the service sector in blocking the spread of negative shocks from the epidemic should be emphasized and brought into play to avoid increasing the overall economic vulnerability. This study will help to deepen the understanding of scholars and policy makers on the network transmission effects of the epidemic.

Suggested Citation

  • Lin Ling & Hayat Khan & Jiang Lingwei & Li Qiumei & Zhang Zuominyang & Itbar Khan, 2023. "Dynamic risk spillover effect and path of risk transmission across industrial sectors in China during COVID-19 epidemic," PLOS ONE, Public Library of Science, vol. 18(10), pages 1-19, October.
  • Handle: RePEc:plo:pone00:0292859
    DOI: 10.1371/journal.pone.0292859
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