A vine-copula conditional value-at-risk approach to systemic sovereign debt risk for the financial sector

Juan Reboredo and Andrea Ugolini

The North American Journal of Economics and Finance, 2015, vol. 32, issue C, 98-123

Abstract: We investigated systemic sovereign debt distress affecting European financial systems and the systemic risk implications for its European partners of a potential Greek debt default before and after the onset of the financial and debt crises, using the conditional value-at-risk (CoVaR) measure, characterized and computed using copulas and vine copulas. Before the debt crisis, sovereign debt was found to imply positive systemic risk for domestic financial systems across Europe. However, with the onset of the Greek crisis, the systemic impact of sovereign debt increased for countries like Greece, Italy and Portugal, while remaining stable or reduced for other countries. Regarding the systemic impact of sovereign Greek debt distress, our evidence indicates that negative impacts were limited to a small set of countries, notably Belgium, Italy, the Netherlands and Portugal.

Keywords: Conditional value-at-risk; Sovereign systemic risk; Financial sector risk; Vine copulas; Sovereign debt crisis (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (31)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ecofin:v:32:y:2015:i:c:p:98-123

DOI: 10.1016/j.najef.2015.02.002

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