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The dynamics of spillover effects during the European sovereign debt crisis

  • Alter, Adrian
  • Beyer, Andreas

In this paper we develop empirical measures for the strength of spillover effects. Modifying and extending the framework by Diebold and Yilmaz (2011), we quantify spillovers between sovereign credit markets and banks in the euro area. Spillovers are estimated recursively from a vector autoregressive model of daily CDS spread changes, with exogenous common factors. We account for interdependencies between sovereign and bank CDS spreads and we derive generalised impulse response functions. Specifically, we assess the systemic effect of an unexpected shock to the creditworthiness of a particular sovereign or country-specific bank index to other sovereign or bank CDSs between October 2009 and July 2012. Channels of transmission from or to sovereigns and banks are aggregated as a Contagion index (CI). This index is disentangled into four components, the average potential spillover: i) amongst sovereigns, ii) amongst banks, iii) from sovereigns to banks, and iv) vice-versa. We highlight the impact of policy-related events along the different components of the contagion index. The systemic contribution of each sovereign or banking group is quantified as the net spillover weight in the total net-spillover measure. Finally, the captured time-varying interdependence between banks and sovereigns emphasises the evolution of their strong nexus. JEL Classification: C58, G01, G18, G21

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Paper provided by European Central Bank in its series Working Paper Series with number 1558.

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Date of creation: Jun 2013
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Handle: RePEc:ecb:ecbwps:20131558
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  1. Giorgia Palladini & Richard Portes, 2011. "Sovereign CDS and Bond Pricing Dynamics in the Euro-area," NBER Working Papers 17586, National Bureau of Economic Research, Inc.
  2. Diebold, Francis X. & Yilmaz, Kamil, 2007. "Measuring financial asset return and volatility spillovers, with application to global equity markets," CFS Working Paper Series 2007/02, Center for Financial Studies (CFS).
  3. Massimiliano Caporin & Loriana Pelizzon & Francesco Ravazzolo & Roberto Rigobon, 2013. "Measuring Sovereign Contagion in Europe," NBER Working Papers 18741, National Bureau of Economic Research, Inc.
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  5. Valerie De Bruyckere & Maria Gerhardt & Glenn Schepens & Rudi Vander Vennet, 2012. "Bank/sovereign risk spillovers in the European debt crisis," Working Paper Research 232, National Bank of Belgium.
  6. Adrian Alter & Yves Stephan Schüler, 2011. "Credit Spead Interdependencies of European States and Banks during the Financial Crisis," Working Paper Series of the Department of Economics, University of Konstanz 2011-24, Department of Economics, University of Konstanz.
  7. Xin Zhang & Bernd Schwaab & Andre Lucas, 2011. "Conditional Probabilities and Contagion Measures for Euro Area Sovereign Default Risk," Tinbergen Institute Discussion Papers 11-176/2/DSF29, Tinbergen Institute, revised 28 Jun 2012.
  8. Diebold, Francis X. & Yılmaz, Kamil, 2014. "On the network topology of variance decompositions: Measuring the connectedness of financial firms," Journal of Econometrics, Elsevier, vol. 182(1), pages 119-134.
  9. Bicu, Andreea & Candelon, Bertrand, 2013. "On the importance of indirect banking vulnerabilities in the Eurozone," Journal of Banking & Finance, Elsevier, vol. 37(12), pages 5007-5024.
  10. Miguel A. Segoviano Basurto & Carlos Caceres & Vincenzo Guzzo, 2010. "Sovereign Spreads; Global Risk Aversion, Contagion or Fundamentals?," IMF Working Papers 10/120, International Monetary Fund.
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  15. Hartmann, Philipp & Straetmans, Stefan & de Vries, Casper, 2005. "Banking system stability: a cross-Atlantic perspective," Working Paper Series 0527, European Central Bank.
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  18. Favero, Carlo A. & Giavazzi, Francesco, 2002. "Is the international propagation of financial shocks non-linear?: Evidence from the ERM," Journal of International Economics, Elsevier, vol. 57(1), pages 231-246, June.
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  20. Kristin J. Forbes & Roberto Rigobon, 2002. "No Contagion, Only Interdependence: Measuring Stock Market Comovements," Journal of Finance, American Finance Association, vol. 57(5), pages 2223-2261, October.
  21. Dornbusch, Rudiger & Park, Yung Chul & Claessens, Stijn, 2000. "Contagion: Understanding How It Spreads," World Bank Research Observer, World Bank Group, vol. 15(2), pages 177-97, August.
  22. Diebold, Francis X. & Yilmaz, Kamil, 2012. "Better to give than to receive: Predictive directional measurement of volatility spillovers," International Journal of Forecasting, Elsevier, vol. 28(1), pages 57-66.
  23. Fontana, Alessandro & Scheicher, Martin, 2016. "An analysis of euro area sovereign CDS and their relation with government bonds," Journal of Banking & Finance, Elsevier, vol. 62(C), pages 126-140.
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  25. Merler, S. & Pisani-Ferry, J., 2012. "Hazardous tango: sovereign-bank interdependence and financial stability in the euro area," Financial Stability Review, Banque de France, issue 16, pages 201-210, April.
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