The single supervision mechanism and contagion between bank and sovereign risk

  • María Cantero SáizEmail author
  • Sergio Sanfilippo Azofra
  • Begoña Torre Olmo
Original Paper


The objective of this article is to analyse how the Single Supervision Mechanism (SSM), the first pillar of the European Banking Union, affects contagion between bank and sovereign risk in the eurozone. Additionally, we test whether this contagion is transmitted from banks to sovereigns or vice versa, and how this transmission differs before and after the SSM. On the one hand, using quarterly data from 80 banks and 13 eurozone countries over the period 2009–2016 (2441 observations), we do not find solid evidence that the SSM reduces contagion from sovereign risk to banks’ stock returns. On the other hand, the analysis of credit default swap (CDS) spreads comprises quarterly data from 25 banks and 10 eurozone countries between 2009 and 2016 (771 observations). We find that the announcement of the SSM in March 2013 reduces contagion between bank and sovereign CDS spreads. Additionally, before the announcement of the SSM, an increase in sovereign risk does not alter contagion. However, after this announcement, an increase in sovereign risk leads to lower contagion. Therefore, the announcement of the SSM has an immediate effect on CDS spreads, while there is not enough evidence for banks’ stock returns.


Single supervision mechanism Bank risk Sovereign risk Contagion 

JEL Classification

G01 G21 G28 H63 



This work was supported by University of Cantabria Foundation for Education and Research in the Financial Sector (UCEIF Foundation).


  1. Acharya, V. V., Drechsler, I., & Schnabl, P. (2014). A pyrrhic victory? Bank bailouts and sovereign credit risk. The Journal of Finance, 69(6), 2689–2739.Google Scholar
  2. Acharya, V. V., Pedersen, H. L., Philippon, T., & Richardson, M. (2017). Measuring systemic risk. The Review of Financial Studies, 30(1), 2–47.Google Scholar
  3. Adelino, M., & Ferreira, M. A. (2016). Bank ratings and lending supply: Evidence from sovereign downgrades. The Review of Financial Studies, 29(7), 1709–1746.Google Scholar
  4. Aizenman, J., Hutchison, M., & Jinjarak, Y. (2013). What is the risk of European sovereign debt defaults? Fiscal space, CDS spreads and market pricing of risk. Journal of International Money and Finance, 34(1), 37–59.Google Scholar
  5. Allegret, J. P., Raymond, H., & Rharrabti, H. (2016). The impact of the eurozone crisis on European banks stocks contagion or interdependence? European Research Studies, 19(1), 129–148.Google Scholar
  6. Alsakka, R., ap Gwilym, O., & Vu, T. N. (2014). The sovereign-rating channel and rating agencies downgrades during the European debt crisis. Journal of International Money and Finance, 49, 235–257.Google Scholar
  7. Altavilla, C., Pagano, M., & Simonelli, S. (2016). Bank exposures and sovereign stress transmission. European Systemic Risk Board. Working Paper Series No. 11/May 2016.Google Scholar
  8. Alter, A., & Beyer, A. (2014). The dynamics of spillover effects during the European sovereign debt turmoil. Journal of Banking and Finance, 42, 134–153.Google Scholar
  9. Alter, A., & Schüler, Y. S. (2012). Credit spread interdependencies of European states and banks during the financial crisis. Journal of Banking and Finance, 36, 3444–3468.Google Scholar
  10. Altunbas, Y., Manganelli, S., & Marques-Ibanez, D. (2011). Bank risk during the financial crisis: Do business models matter? ECB Working Paper, 1394.Google Scholar
  11. Anderson, M. (2011). Contagion and excess correlation in credit default swaps. Working Paper, George Mason University.Google Scholar
  12. Angeloni, I. (2015). The single supervisory mechanism. European Economy. Banks, Regulation and the Real Sector, 1(3), 43–55.Google Scholar
  13. Angeloni, C., & Wolff, G.B. (2012). Are banks affected by their holdings of government debt? Bruegel Working Paper, (2012/07).Google Scholar
  14. Arezki, R., Candelon, B., & Sy, A. (2011). Sovereign rating news and financial markets spillovers: Evidence from the European debt crisis. IMF Working Paper, 68.Google Scholar
  15. Baele, L., De Jonghe, O., & Vander Vennet, R. (2007). Does the stock market value bank diversification? Journal of Banking and Finance, 31(7), 1999–2023.Google Scholar
  16. Barba-Navaretti, G., Calzolari, G., & Franco-Pozzolo, A. (2015). Sand in the wheels: Implementing the single supervision mechanism and multinational banking in Europe. European Economy. Banks, Regulation and the Real Sector, 1(3), 9–23.Google Scholar
  17. Barth, J. R., Prabha, A., & Yun, G. (2012). The eurozone financial crisis: Role of interdependencies between bank and sovereign risk. Journal of Financial Economic Policy, 4(1), 76–97.Google Scholar
  18. Bekaert, G., Harvey, C., & Ng, A. (2005). Market integration and contagion. Journal of Business, 78(1), 39–69.Google Scholar
  19. Berndt, A., & Obreja, I. (2010). Decomposing European CDS returns. Review of Finance, 14, 189–233.Google Scholar
  20. Black, F. (1975). Fact and fantasy in use of options. Financial Analysts Journal, 31, 61–72.Google Scholar
  21. Bocola, L. (2016). The pass-through of sovereign risk. Journal of Political Economy, 124(4), 879–926.Google Scholar
  22. Bolton, P., & Jeanne, O. (2011). Sovereign default risk and bank fragility in financially integrated economies. IMF Economic Review, 59(2), 162–194.Google Scholar
  23. Borenzstein, E., Cowan, K., & Valenzuela, P. (2013). The sovereign ceiling lite and bank credit ratings in emerging market economies. Journal of Banking and Finance, 37(11), 4014–4024.Google Scholar
  24. Breton, R., Pinto, C., & Weber, P. F. (2012). Banks, moral hazard and public debts. Financial Stability Review, 16, 57–70.Google Scholar
  25. Brown, C., & Dinc, I. (2011). Too many to fail? Evidence of regulatory forbearance when the banking sector is weak. Review of Financial Studies, 24(4), 1378–1405.Google Scholar
  26. Buch, C. M., Koetter, M., & Ohls, J. (2016). Banks and sovereign risk: A granular view. Journal of Financial Stability, 25, 1–15.Google Scholar
  27. Cantero-Saiz, M., Sanfilippo-Azofra, S., Torre-Olmo, B., & Lopez-Gutierrez, C. (2014). Sovereign risk and the bank lending channel in Europe. Journal of International Money and Finance, 47, 1–20.Google Scholar
  28. Carboni, M., Fiordelisi, F., Ricci, O., & Lopes, F. S. S. (2017). Surprised or not surprised? The investors’ reaction to the comprehensive assessment preceding the launch of the banking union. Journal of Banking and Finance, 74, 122–132.Google Scholar
  29. Carhart, M. (1997). On persistence in mutual fund performance. Journal of Finance, 52, 57–82.Google Scholar
  30. Caselli, S., Gandolfi, G., & Soana, M. G. (2014). The impact of sovereign rating news on European banks. European Financial Management, 22(1), 142–167.Google Scholar
  31. CGFS (2011). The impact of sovereign credit risk on bank funding conditions. CGFS papers (Vol. 43).Google Scholar
  32. Correa, R., Lee, K. H., Sapriza, H., & Suarez, G. A. (2014). Sovereign credit risk, banks’ government support, and bank stock returns around the world. Journal of Money, Credit and Banking, 46(1), 93–121.Google Scholar
  33. Correa, R., Sapriza, H, & Zlate, A. (2012). Liquidity shocks, dollar funding costs, and the bank lending channel during the European sovereign crisis. Federal Reserve System International Finance Discussion Papers (p. 1059).Google Scholar
  34. Darvas, Z., & Wolff, G. (2013). Should non-euro area countries join the Single Supervisory Mechanism? Bruegel policy contribution (Vol. 013/06).Google Scholar
  35. Davies, M., & Ng, T. (2011). The rise of sovereign credit risk: Implications for financial stability. BIS Quarterly Review (pp. 59–70). Bank for International Settlements, September.Google Scholar
  36. De Bruyckere, V., Gerhardt, M., Schephens, G., & Vander Vennet, R. (2013). Bank/sovereign risk spillovers in the European debt crisis. Journal of Banking and Finance, 37, 4793–4809.Google Scholar
  37. Demirgüç-Kunt, A., & Huizinga, H. (2013). Are banks too big to fail or too big to save? International evidence from equity prices and CDS spreads. Journal of Banking and Finance, 37, 875–894.Google Scholar
  38. Dieckmann, S., & Plank, T. (2012). Default risk of advanced economies: An empirical analysis of credit default swaps during the financial crisis. Review of Finance, 16, 903–934.Google Scholar
  39. Drago, D., & Gallo, R. (2016). The impact and the spillover effect of a sovereign rating announcement on the euro area CDS market. Journal of International Money and Finance, 67, 264–286.Google Scholar
  40. Easley, D., O’Hara, M., & Srinivas, P. S. (1998). Option volume and stock prices: evidence on where informed traders trade. Journal of Finance, 53, 431–465.Google Scholar
  41. Ejsing, J., & Lemke, W. (2011). The Janus-headed salvation: sovereign and bank credit risk premia during 2008–2009. Economic Letters, 110(1), 28–31.Google Scholar
  42. Engler, P., & Steffen, C. G. (2016). Sovereign risk, interbank freezes, and aggregate fluctuations. European Economic Review, 87, 34–61.Google Scholar
  43. European Commission (2012). Commission proposes new ECB powers for banking supervision as part of a banking union. Press Release, 12 September 2012.Google Scholar
  44. Fama, E. F., & French, K. R. (1993). Common risk factors in the returns on stocks and bonds. Journal of Financial Economics, 33, 3–56.Google Scholar
  45. Fontana, A., & Scheicher, M. (2010). An analysis of euro area sovereign CDS and their relation with government bonds. ECB working paper (p. 1271).Google Scholar
  46. Forbes, K., & Rigobon, R. (2002). No contagion, only interdependence: Measuring stock market comovements. The Journal of Finance, 57(5), 2223–2261.Google Scholar
  47. Gennaioli, N., Martin, A., & Rossi, S. (2014). Sovereign default, domestic banks, and financial institutions. The Journal of Finance, 64(2), 819–866.Google Scholar
  48. Gerlach, S., Schulz, A., & Wolff, G. B. (2010). Banking and sovereign risk in the euro area. Deutsche Bundesbank Eurosystem. Discussion paper series 1: Economic studies (Vol. 09/2010).Google Scholar
  49. Gervais, S., & Odean, T. (2001). Learning to be overconfident. The Review of Financial Studies, 14, 1–27.Google Scholar
  50. Giannikos, C., Guirguis, H., & Suen, M. (2013). The 2008 financial crisis and the dynamics of price discovery among stock prices, CDS spreads, and bond spreads for U.S. financial firms. The Journal of Derivatives (Fall), 21(1), 27–48.Google Scholar
  51. Gray, D. F., & Malone, S. W. (2012). Sovereign and financial-sector risk: Measurement and interactions. Annual Review of Financial Economics, 4(1), 297–312.Google Scholar
  52. Gray, D. F., Merton, R. C., & Bodie, Z. (2008). New framework for measuring and managing macrofinancial risk and financial stability. National bureau of economic research working paper (p. 13607).Google Scholar
  53. Gündüz, Y., & Kaya, O. (2014). Impacts of the financial crisis on eurozone sovereign CDS spreads. Journal of International Money and Finance, 49, 425–442.Google Scholar
  54. Hausman, J. A. (1978). Specification tests in econometrics. Econometrica: Journal of the Econometric Society, 46(6), 1251–1271.Google Scholar
  55. Howarth, D., & Quaglia, L. (2015). The political economy of the new Single Supervisory Mechanism: Squaring the “Inconsistent Quartet” (pp. 10–15). Joint Sessions: European Consortium of Political Research.Google Scholar
  56. Hsiao, C. (1985). Benefits and limitations of panel data. Economic Review, 4, 121–174.Google Scholar
  57. Idier, J., Lamé, G., & Mésonnier, J. S. (2014). How useful is the marginal expected shortfall for the measurement of systemic risk exposure? A practical assessment. Journal of Banking and Finance, 47, 134–146.Google Scholar
  58. Jegadeesh, N., & Titman, S. (1993). Returns to buying winners and selling losers: Implications for stock market efficiency. Journal of Finance, 48, 65–91.Google Scholar
  59. Jiang, L., Levine, R., & Lin, C. (2017). Does competition affect bank risk? National bureau of economic research (No. w23080).Google Scholar
  60. Kallestrup, R., Lando, D., & Murgoci, A. (2016). Financial sector linkages and the dynamics of bank and sovereign credit spreads. Journal of Empirical Finance, 38, 374–393.Google Scholar
  61. Kräussl, R., Lehnert, T., & Stefanova, D. (2016). The European sovereign debt crisis: What have we learned? Journal of Empirical Finance, 38, 363–373.Google Scholar
  62. Leblond, P. (2014). The logic of a banking union for Europe. Journal of Banking Regulation, 15(3/4), 288–298.Google Scholar
  63. Li, J., & Zinna, G. (2014). How much of bank credit risk is sovereign risk? Evidence from the eurozone. Bank of Italy working papers No. 990.Google Scholar
  64. Lintner, J. (1965). The valuation of risk assets and the selection of risky investments in stock portfolios and capital budgets. Review of Economics and Statistics, 47, 13–37.Google Scholar
  65. Longstaff, F., Pan, J., Pedersen, L., & Singleton, K. (2011). How sovereign is sovereign credit risk? American Economic Journal: Macroeconomics, 3(2), 75–103.Google Scholar
  66. McQueen, G., Pinegar, M., & Thorley, S. (1996). Delayed reaction to good news and the cross-autocorrelation of portfolio returns. The Journal of Finance, 51(3), 889–919.Google Scholar
  67. Merler, S., & Pisani-Ferri, J. (2012). Who’s afraid of sovereign bonds? Bruegel Policy Contribution 2012|02, February 2012.Google Scholar
  68. Mody, A. (2009). From Bear Stearns to Anglo Irish: How eurozone sovereign spreads related to financial sector vulnerability. IMF working papers, 09/108.Google Scholar
  69. Nowotny, E. (2014). The future of European monetary integration. Atlantic Economic Journal, 42(3), 229–242.Google Scholar
  70. Odean, T. (1998). Are investors reluctant to realize losses? Journal of Finance, 53, 1775–1798.Google Scholar
  71. Pasquariello, P. (2007). Imperfect competition, information heterogeneity, and financial contagion. The Review of Financial Studies, 20(2), 391–426.Google Scholar
  72. Popov, A., & van Horen, N. (2013). The impact of sovereign debt exposure on bank lending: Evidence from the European debt crisis. DNB working paper (Vol. 382).Google Scholar
  73. Schich, S., & Lindh, S. (2012). Implicit guarantees for bank debt: where do we stand?. OECD Financial Markets Trends, 2012(1), 45–63.Google Scholar
  74. Sharpe, W. F. (1964). Capital asset prices: A theory of market equilibrium under conditions of risk. Journal of Finance, 19, 425–442.Google Scholar
  75. Statman, M., Thorley, S., & Vorkink, K. (2006). Investor overconfidence and trading volume. The Review of Financial Studies, 19, 1535–1565.Google Scholar
  76. Veronesi, P. (1999). Stock market overreaction to bad news in good times: A rational expectations equilibrium model. The Review of Financial Studies, 12(5), 975–1007.Google Scholar
  77. Williams, G., Alsakka, R., & ap Gwilym, O. (2013). The impact of sovereign rating actions on bank ratings in emerging markets. Journal of Banking & Finance, 37, 563–577.Google Scholar
  78. Yip, P. S. L., & Tsang, E. W. K. (2007). Interpreting dummy variables and their interaction effects in strategy research. Strategic Organization, 5(1), 13–30.Google Scholar
  79. Yu, S. (2017). Sovereign and bank interdependencies: Evidence from the CDS market. Research in International Business and Finance, 39, 68–84.Google Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • María Cantero Sáiz
    • 1
    Email author
  • Sergio Sanfilippo Azofra
    • 1
  • Begoña Torre Olmo
    • 1
  1. 1.University of CantabriaSantanderSpain

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