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Sovereign risk spillovers: A network approach

Chau Le, David Dickinson and Anh Le

Journal of Financial Stability, 2022, vol. 60, issue C

Abstract: Understanding the global financial network for sovereign debt, particularly with a focus on interaction and spillover effects of sovereign risk, has become important for policy makers as they look to protect the stability of their economies. Using high dimensional Vector Autoregression techniques and network simulation on Sovereign Credit Default Swaps (CDS)’ data of 57 countries, we identify that the global sovereign CDS network is fully integrated as there is virtually no country without any connection to at least one specific node in the system. However, each country has a unique attribute in the network, as a risk exporter or importer and/or risk transmitter. Among developed countries, the US (unsurprisingly) holds the dominant position as a risk exporter while Germany is identified as a connecting country that transmits shocks. The most connected countries in the sovereign CDS network belong to the new European Union members. We examine possible drivers of the network relationships observed, in order to better understand the risk transmission process, and find that connections in the sovereign risk network are stronger within regional groups and countries with the same level of economic development. Central and Eastern Europe and Middle East and Africa have more interactive networks than Northern Western Europe, Asia Pacific and Latin America. We also identify that financial volatility and economic policy uncertainty increase the interactions in market-based default risk assessment.

Keywords: Credit default swap; Interconnection; Network analysis; Sovereign risk; Economic policy uncertainty (search for similar items in EconPapers)
JEL-codes: D85 F15 F36 G01 G15 (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1016/j.jfs.2022.101006

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