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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. Francis X. Diebold & Kamil Yilmaz, 2008. "Measuring financial asset return and volatility spillovers, with application to global equity markets," Working Papers 08-16, Federal Reserve Bank of Philadelphia.
  2. De Bruyckere, Valerie & Gerhardt, Maria & Schepens, Glenn & Vander Vennet, Rudi, 2013. "Bank/sovereign risk spillovers in the European debt crisis," Journal of Banking & Finance, Elsevier, vol. 37(12), pages 4793-4809.
  3. Francis X. Diebold & Kamil Yılmaz, 2011. "On the Network Topology of Variance Decompositions: Measuring the Connectedness of Financial Firms," PIER Working Paper Archive 11-031, Penn Institute for Economic Research, Department of Economics, University of Pennsylvania.
  4. 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.
  5. 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.
  6. Peter Claeys & Borek Vašícek, 2012. "“Measuring Sovereign Bond Spillover in Europe and the Impact of Rating News”," AQR Working Papers 201209, University of Barcelona, Regional Quantitative Analysis Group, revised Nov 2012.
  7. Antje Berndt & Iulian Obreja, 2010. "Decomposing European CDS Returns," Review of Finance, European Finance Association, vol. 14(2), pages 189-233.
  8. 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.
  9. Palladini, Giorgia & Portes, Richard, 2011. "Sovereign CDS and Bond Pricing Dynamics in the Euro-area," CEPR Discussion Papers 8651, C.E.P.R. Discussion Papers.
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  11. Pesaran, H. Hashem & Shin, Yongcheol, 1998. "Generalized impulse response analysis in linear multivariate models," Economics Letters, Elsevier, vol. 58(1), pages 17-29, January.
  12. Massimiliano Caporin & Loriana Pelizzon & Francesco Ravazzolo & Roberto Rigobon, 2012. "Measuring sovereign contagion in Europe," Working Paper 2012/05, Norges Bank.
  13. 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.
  14. Beirne, John & Fratzscher, Marcel, 2013. "The pricing of sovereign risk and contagion during the European sovereign debt crisis," Working Paper Series 1625, European Central Bank.
  15. Philipp Hartmann & Stefan Straetmans & Casper G. De Vries, 2005. "Banking System Stability: A Cross-Atlantic Perspective," NBER Working Papers 11698, National Bureau of Economic Research, Inc.
  16. Fontana, Alessandro & Scheicher, Martin, 2010. "An analysis of euro area sovereign CDS and their relation with government bonds," Working Paper Series 1271, European Central Bank.
  17. Francis X. Diebold & Kamil Yilmaz, 2010. "Better to Give than to Receive: Predictive Directional Measurement of Volatility Spillovers," Koç University-TUSIAD Economic Research Forum Working Papers 1001, Koc University-TUSIAD Economic Research Forum, revised Mar 2010.
  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.
  19. 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.
  20. Ejsing, Jacob & Lemke, Wolfgang, 2011. "The Janus-headed salvation: Sovereign and bank credit risk premia during 2008-2009," Economics Letters, Elsevier, vol. 110(1), pages 28-31, January.
  21. Koop, Gary & Pesaran, M. Hashem & Potter, Simon M., 1996. "Impulse response analysis in nonlinear multivariate models," Journal of Econometrics, Elsevier, vol. 74(1), pages 119-147, September.
  22. Francis A. Longstaff & Jun Pan & Lasse H. Pedersen & Kenneth J. Singleton, 2011. "How Sovereign Is Sovereign Credit Risk?," American Economic Journal: Macroeconomics, American Economic Association, vol. 3(2), pages 75-103, April.
  23. 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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