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Journal of Financial Stability Vol. 51 2020

A zero-risk weight channel of sovereign risk spillovers

Karolin Kirschenmann1; Josef Korte2; Sascha Steffen3

1 Centre for European Economic Research · 2 Goethe University Frankfurt · 3 Frankfurt School of Finance & Management

Abstract

European banks are exposed to a substantial amount of risky sovereign debt. “Missing capital” in the banking system resulting from the zero-risk weight exemption for European sovereign debt amplifies the co-movement between sovereign CDS spreads and facilitates cross-border crisis spillovers. Risks spill over from risky peripheral sovereigns to safer core countries, but not in the opposite direction nor for exposures to countries not exempted from risk-weighting. Unfunded non-domestic sovereign bond exposures primarily affect CDS spreads of non-GIIPS banks, while domestic sovereign-to-bank linkages are particularly important for GIIPS banks. Spillovers are attenuated when banks fund their sovereign bond exposures with capital.

DOI
10.1016/j.jfs.2020.100780
Volume
51
Pages
100780
Language
en
Sources
bibtex:phds-export.bib openalex crossref

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