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The changing international network of sovereign debt and financial institutions

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  • Dungey, Mardi
  • Harvey, John
  • Volkov, Vladimir

Abstract

We assess the changing nature of the relationships between financial institutions and sovereigns globally using a weighted, directed network of CDS spreads. The framework includes both the strength and direction of the links in the network, allowing us to formally test for evidence on changes in the completeness of the network, for contagion effects, and for strengthening and weakening of the links in the network. We find evidence of all of these effects for 107 US dollar denominated CDS spreads over 2003–2014. We use the results to illustrate the change from a relatively robust network with some vulnerability to financial sector shocks in the pre-GFC period to a highly fragile network during the GFC and a subsequent return to greater robustness post-GFC where, despite the Greek and European debt crisis effects, fragility is similar when sourced from either financial sector or sovereign debt shocks.

Suggested Citation

  • Dungey, Mardi & Harvey, John & Volkov, Vladimir, 2019. "The changing international network of sovereign debt and financial institutions," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 60(C), pages 149-168.
    • Handle: RePEc:eee:intfin:v:60:y:2019:i:c:p:149-168
    DOI: 10.1016/j.intfin.2018.12.013
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    Cited by:

    1. Inekwe, John Nkwoma, 2020. "Liquidity connectedness and output synchronisation," Journal of International Financial Markets, Institutions and Money, Elsevier, vol. 66(C).
    2. Chen, Wang & Ho, Kung-Cheng & Yang, Lu, 2020. "Network structures and idiosyncratic contagion in the European sovereign credit default swap market," International Review of Financial Analysis, Elsevier, vol. 72(C).
    3. Wu, Shan & Liu, Yilong & Song, Ziyu & Zhou, Yuqin & Guo, Wenjing, 2024. "Network structure, dynamic evolution and block characteristics of sovereign debt risk: The global evidence," Research in International Business and Finance, Elsevier, vol. 72(PA).
    4. Gillmann, Niels & Okhrin, Ostap, 2025. "Adaptive local VAR for dynamic economic policy uncertainty spillover," Economic Modelling, Elsevier, vol. 148(C).
    5. Rui Wang & Jing Kang, 2024. "Financial Interconnectedness and Bank Risk-Taking: Evidence from China," Journal of the Knowledge Economy, Springer;Portland International Center for Management of Engineering and Technology (PICMET), vol. 15(3), pages 11819-11847, September.
    6. Chowdhury, Biplob & Dungey, Mardi & Kangogo, Moses & Sayeed, Mohammad Abu & Volkov, Vladimir, 2019. "The changing network of financial market linkages: The Asian experience," International Review of Financial Analysis, Elsevier, vol. 64(C), pages 71-92.
    7. Raisul Islam & Vladimir Volkov, 2022. "Contagion or interdependence? Comparing spillover indices," Empirical Economics, Springer, vol. 63(3), pages 1403-1455, September.
    8. Niels Gillmann & Ostap Okhrin, 2023. "Adaptive local VAR for dynamic economic policy uncertainty spillover," Papers 2302.02808, arXiv.org.
    9. Bales, Stephan, 2022. "Sovereign and bank dependence in the eurozone: A multi-scale approach using wavelet-network analysis," International Review of Financial Analysis, Elsevier, vol. 83(C).
    10. Dungey, Mardi & Harvey, John & Siklos, Pierre & Volkov, Vladimir, 2017. "Signed spillover effects building on historical decompositions," Working Papers 2017-11, University of Tasmania, Tasmanian School of Business and Economics.
    11. Rosenkranz, Peter & Melchor, Monica, 2022. "Asia’s financial interconnectedness: Evolution, implications, and insights from past crises," Economic Analysis and Policy, Elsevier, vol. 76(C), pages 685-707.
    12. Tomohiro Ando & Matthew Greenwood-Nimmo & Yongcheol Shin, 2022. "Quantile Connectedness: Modeling Tail Behavior in the Topology of Financial Networks," Management Science, INFORMS, vol. 68(4), pages 2401-2431, April.
    13. Mardi Dungey & Stan Hurn & Shuping Shi & Vladimir Volkov, 2019. "Information Flow in Times of Crisis: The Case of the European Banking and Sovereign Sectors," Econometrics, MDPI, vol. 7(1), pages 1-20, January.
    14. Moses Kangogo & Mardi Dungey & Vladimir Volkov, 2023. "Changing vulnerability in Asia: contagion and spillovers," Empirical Economics, Springer, vol. 64(5), pages 2315-2355, May.
    15. Bales, Stephan & Burghartz, Kaspar & Burghof, Hans-Peter & Hitz, Lukas, 2023. "Does the source of uncertainty matter? The impact of financial, newspaper and Twitter-based measures on U.S. banks," Research in International Business and Finance, Elsevier, vol. 65(C).
    16. Billio, Monica & Caporin, Massimiliano & Frattarolo, Lorenzo & Pelizzon, Loriana, 2023. "Networks in risk spillovers: A multivariate GARCH perspective," Econometrics and Statistics, Elsevier, vol. 28(C), pages 1-29.
    17. Miyakoshi, Tatsuyoshi & Shimada, Junji, 2022. "Network analysis of local currency Asian government bond markets: Assessments of the ABFI and the ABMI," The North American Journal of Economics and Finance, Elsevier, vol. 62(C).
    18. Palaios, Panagiotis & Triantafillou, Anna, 2025. "Exploring spillover effects in the four shipping markets: Theory and empirical evidence from bulk shipping," Transport Policy, Elsevier, vol. 170(C), pages 75-91.
    19. Bouri, Elie & Quinn, Barry & Sheenan, Lisa & Tang, Yayan, 2024. "Investigating extreme linkage topology in the aerospace and defence industry," International Review of Financial Analysis, Elsevier, vol. 93(C).
    20. Miyakoshi, Tatsuyoshi & Shimada, Junji & Li, Kui-Wai, 2023. "A network analysis on country and financial center attractiveness: Evidence from Asian economies, 2001–2018," International Review of Economics & Finance, Elsevier, vol. 87(C), pages 418-432.

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    JEL classification:

    • G01 - Financial Economics - - General - - - Financial Crises
    • C58 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Financial Econometrics
    • C31 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Cross-Sectional Models; Spatial Models; Treatment Effect Models; Quantile Regressions; Social Interaction Models

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