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An analysis of network filtering methods to sovereign bond yields during COVID-19

Author

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  • Raymond Ka-Kay Pang
  • Oscar Granados
  • Harsh Chhajer
  • Erika Fille Legara
Abstract
In this work, we investigate the impact of the COVID-19 pandemic on sovereign bond yields. We consider the temporal changes from financial correlations using network filtering methods. These methods consider a subset of links within the correlation matrix, which gives rise to a network structure. We use sovereign bond yield data from 17 European countries between the 2010 and 2020 period. We find the mean correlation to decrease across all filtering methods during the COVID-19 period. We also observe a distinctive trend between filtering methods under multiple network centrality measures. We then relate the significance of economic and health variables towards filtered networks within the COVID-19 period. Under an exponential random graph model, we are able to identify key relations between economic groups across different filtering methods.

Suggested Citation

  • Raymond Ka-Kay Pang & Oscar Granados & Harsh Chhajer & Erika Fille Legara, 2020. "An analysis of network filtering methods to sovereign bond yields during COVID-19," Papers 2009.13390, arXiv.org, revised Feb 2021.
    • Handle: RePEc:arx:papers:2009.13390
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    References listed on IDEAS

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    2. Ekaterina E. Emm & Gerald D. Gay & Han Ma & Honglin Ren, 2022. "Effects of the Covid‐19 pandemic on derivatives markets: Evidence from global futures and options exchanges," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 42(5), pages 823-851, May.
    3. Zhuang, Yangyang & Zhang, Ditian & Tang, Pan & Peng, Hongjuan, 2024. "Clustering effects and evolution of the global major 10-year government bond market structure: A network perspective," The North American Journal of Economics and Finance, Elsevier, vol. 70(C).
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    6. Sanjay Kumar Rout & Hrushikesh Mallick, 2022. "Sovereign Bond Market Shock Spillover Over Different Maturities: A Journey from Normal to Covid-19 Period," Asia-Pacific Financial Markets, Springer;Japanese Association of Financial Economics and Engineering, vol. 29(4), pages 697-734, December.

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