Measuring Contagion Potential Among Sovereigns and Banks Using a Mixed-Cross-Section GVAR

49 Pages Posted: 12 Aug 2013

See all articles by Marco Gross

Marco Gross

International Monetary Fund (IMF); European Central Bank (ECB)

Christoffer Kok

European Central Bank (ECB)

Date Written: August 2013

Abstract

This paper aims to illustrate how a Mixed-Cross-Section Global Vector Autoregressive (MCS-GVAR) model can be set up and solved for the purpose of forecasting and scenario simulation. The application involves two cross-sections: sovereigns and banks for which we model their credit default swap spreads. Our MCS-GVAR comprises 23 sovereigns and 41 international banks from Europe, the US and Japan. The model is used to conduct systematic shock simulations and thereby compute a measure of spill-over potential for within and across the group of sovereigns and banks. The results point to a number of salient facts: i) Spill-over potential in the CDS market was particularly pronounced in 2008 and more recently in 2011-12; ii) while in 2008 contagion primarily went from banks to sovereigns, the direction reversed in 2011-12 in the course of the sovereign debt crisis; iii) the index of spill-over potential suggests that the system of banks and sovereigns has become more densely connected over time. Should large shocks of size similar to those experienced in the early phase of the crisis hit the system in 2011/2012, considerably more pronounced and more synchronized adverse responses across banks and sovereigns would have to be expected.

Keywords: Macro-financial linkages, global macroeconometric modeling, models with panel data, forecasting and simulation, contagion, spill-overs, network analysis

JEL Classification: C33, C53, C61, E17

Suggested Citation

Gross, Marco and Kok, Christoffer, Measuring Contagion Potential Among Sovereigns and Banks Using a Mixed-Cross-Section GVAR (August 2013). ECB Working Paper No. 1570. Available at SSRN: https://ssrn.com/abstract=2302511

Marco Gross (Contact Author)

International Monetary Fund (IMF) ( email )

700 19th Street, N.W.
Washington, DC 20431
United States

European Central Bank (ECB) ( email )

Sonnemannstrasse 22
Frankfurt am Main, 60314
Germany

Christoffer Kok

European Central Bank (ECB) ( email )

Sonnemannstrasse 22
Frankfurt am Main, 60314
Germany

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