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The effect of possible EU diversification requirements on the risk of banks’ sovereign bond portfolios

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  • Craig, Ben
  • Giuzio, Margherita
  • Paterlini, Sandra

Abstract

Recent policy discussion includes the introduction of diversification requirements for sovereign bond portfolios of European banks. In this paper, we evaluate the possible effects of these constraints on risk and diversification in the sovereign bond portfolios of the major European banks. First, we capture the dependence structure of European countries' sovereign risks and identify the common factors driving European sovereign CDS spreads by means of an independent component analysis. We then analyse the risk and diversification in the sovereign bond portfolios of the largest European banks and discuss the role of “home bias”, i.e. the tendency of banks to concentrate their sovereign bond holdings in their domicile country. Finally, we evaluate the effect of diversification requirements on the tail risk of sovereign bond portfolios. Under our assumptions about how banks rebalance their portfolio to respond to the new requirements, demanding that banks modify their holdings to increase their portfolio diversification may be ineffective in reducing portfolio risk, including tail risk. JEL Classification: G01, G11, G21, G28

Suggested Citation

  • Craig, Ben & Giuzio, Margherita & Paterlini, Sandra, 2020. "The effect of possible EU diversification requirements on the risk of banks’ sovereign bond portfolios," Working Paper Series 2384, European Central Bank.
    • Handle: RePEc:ecb:ecbwps:20202384
    Note: 3546207
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    as
    1. Ledoit, Olivier & Wolf, Michael, 2004. "A well-conditioned estimator for large-dimensional covariance matrices," Journal of Multivariate Analysis, Elsevier, vol. 88(2), pages 365-411, February.
    2. Gaballo, Gaetano & Zetlin-Jones, Ariel, 2016. "Bailouts, moral hazard and banks׳ home bias for Sovereign debt," Journal of Monetary Economics, Elsevier, vol. 81(C), pages 70-85.
    3. Nicolas Coeurdacier & Hélène Rey, 2013. "Home Bias in Open Economy Financial Macroeconomics," Journal of Economic Literature, American Economic Association, vol. 51(1), pages 63-115, March.
    4. Bernard, Carole & Vanduffel, Steven, 2015. "A new approach to assessing model risk in high dimensions," Journal of Banking & Finance, Elsevier, vol. 58(C), pages 166-178.
    5. T. Roncalli & G. Weisang, 2016. "Risk parity portfolios with risk factors," Quantitative Finance, Taylor & Francis Journals, vol. 16(3), pages 377-388, March.
    6. Ravi Jagannathan & Tongshu Ma, 2003. "Risk Reduction in Large Portfolios: Why Imposing the Wrong Constraints Helps," Journal of Finance, American Finance Association, vol. 58(4), pages 1651-1683, August.
    7. Frank J. Fabozzi & Rosella Giacometti & Naoshi Tsuchida, 2015. "The ICA-based Factor Decomposition of the Eurozone Sovereign CDS Spreads," IMES Discussion Paper Series 15-E-04, Institute for Monetary and Economic Studies, Bank of Japan.
    8. Jones, Charles M & Kaul, Gautam & Lipson, Marc L, 1994. "Transactions, Volume, and Volatility," The Review of Financial Studies, Society for Financial Studies, vol. 7(4), pages 631-651.
    9. Matthew Elliott & Benjamin Golub & Matthew O. Jackson, 2014. "Financial Networks and Contagion," American Economic Review, American Economic Association, vol. 104(10), pages 3115-3153, October.
    10. Carlo Altavilla & Marco Pagano & Saverio Simonelli, 2017. "Bank Exposures and Sovereign Stress Transmission," Review of Finance, European Finance Association, vol. 21(6), pages 2103-2139.
    11. Roncalli, Thierry, 2013. "Introduction to Risk Parity and Budgeting," MPRA Paper 47679, University Library of Munich, Germany.
    12. Viral Acharya & Itamar Drechsler & Philipp Schnabl, 2014. "A Pyrrhic Victory? Bank Bailouts and Sovereign Credit Risk," Journal of Finance, American Finance Association, vol. 69(6), pages 2689-2739, December.
    13. Craig, Ben & Giuzio, Margherita & Paterlini, Sandra, 2019. "The effect of possible EU diversification requirements on the risk of banks' sovereign bond portfolios," ESRB Working Paper Series 89, European Systemic Risk Board.
    14. Broner, Fernando & Erce, Aitor & Martin, Alberto & Ventura, Jaume, 2014. "Sovereign debt markets in turbulent times: Creditor discrimination and crowding-out effects," Journal of Monetary Economics, Elsevier, vol. 61(C), pages 114-142.
    15. Buch, Claudia M. & Koetter, Michael & Ohls, Jana, 2016. "Banks and sovereign risk: A granular view," Journal of Financial Stability, Elsevier, vol. 25(C), pages 1-15.
    16. 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.
    17. Niccolò Battistini & Marco Pagano & Saverio Simonelli, 2014. "Systemic risk, sovereign yields and bank exposures in the euro crisis [Real effects of the sovereign debt crises in Europe: evidence from syndicated loans]," Economic Policy, CEPR, CESifo, Sciences Po;CES;MSH, vol. 29(78), pages 203-251.
    18. Daron Acemoglu & Asuman Ozdaglar & Alireza Tahbaz-Salehi, 2015. "Systemic Risk and Stability in Financial Networks," American Economic Review, American Economic Association, vol. 105(2), pages 564-608, February.
    19. Albertazzi, Ugo & Becker, Bo & Boucinha, Miguel, 2018. "Portfolio rebalancing and the transmission of large-scale asset programmes: evidence from the euro area," Working Paper Series 2125, European Central Bank.
    20. Caccioli, Fabio & Shrestha, Munik & Moore, Cristopher & Farmer, J. Doyne, 2014. "Stability analysis of financial contagion due to overlapping portfolios," Journal of Banking & Finance, Elsevier, vol. 46(C), pages 233-245.
    21. Embrechts, Paul & Puccetti, Giovanni & Rüschendorf, Ludger, 2013. "Model uncertainty and VaR aggregation," Journal of Banking & Finance, Elsevier, vol. 37(8), pages 2750-2764.
    22. Fabozzi, Frank J. & Giacometti, Rosella & Tsuchida, Naoshi, 2016. "Factor decomposition of the Eurozone sovereign CDS spreads," Journal of International Money and Finance, Elsevier, vol. 65(C), pages 1-23.
    23. Choi, Nicole & Fedenia, Mark & Skiba, Hilla & Sokolyk, Tatyana, 2017. "Portfolio concentration and performance of institutional investors worldwide," Journal of Financial Economics, Elsevier, vol. 123(1), pages 189-208.
    24. Ravi Jagannathan & Tongshu Ma, 2003. "Risk Reduction in Large Portfolios: Why Imposing the Wrong Constraints Helps," Journal of Finance, American Finance Association, vol. 58(4), pages 1651-1684, August.
    25. Aït-Sahalia, Yacine & Laeven, Roger J.A. & Pelizzon, Loriana, 2014. "Mutual excitation in Eurozone sovereign CDS," Journal of Econometrics, Elsevier, vol. 183(2), pages 151-167.
    26. Uhlig Harald, 2014. "Sovereign Default Risk and Banks in a Monetary Union," German Economic Review, De Gruyter, vol. 15(1), pages 23-41, February.
    27. repec:hal:spmain:info:hdl:2441/1shj1p7td8e0r5c9fcsnk8a91 is not listed on IDEAS
    28. Ang, Andrew & Longstaff, Francis A., 2013. "Systemic sovereign credit risk: Lessons from the U.S. and Europe," Journal of Monetary Economics, Elsevier, vol. 60(5), pages 493-510.
    29. Ariel Zetlin-Jones & Gaetano Gaballo, 2016. "Bailouts, Moral Hazard, and Banks’ Home Bias for Sovereign Debt," 2016 Meeting Papers 876, Society for Economic Dynamics.
    30. Cont, Rama & Schaanning, Eric, 2019. "Monitoring indirect contagion," Journal of Banking & Finance, Elsevier, vol. 104(C), pages 85-102.
    31. Aitor Erce, 2015. "Bank and sovereign risk feedback loops," Globalization Institute Working Papers 227, Federal Reserve Bank of Dallas.
    32. Andreja Lenarčič & Dirk Mevis & Dóra Siklós, 2016. "Tackling sovereign risk in European banks," Discussion Papers 1, European Stability Mechanism.
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    Cited by:

    1. Ambrocio, Gene & Gu, Xian & Hasan, Iftekhar & Politsidis, Panagiotis N., 2022. "The diplomacy discount in global syndicated loans," Journal of International Money and Finance, Elsevier, vol. 120(C).
    2. Ben R. Craig & Margherita Giuzio & Sandra Paterlini, 2019. "The Effect of Possible EU Diversification Requirements on the Risk of Banks’ Sovereign Bond Portfolios," Working Papers 19-12, Federal Reserve Bank of Cleveland.
    3. Sam Langfield, 2020. "Bridge over Troubled Monetary Union: A Reply to De Grauwe & Ji," Journal of Common Market Studies, Wiley Blackwell, vol. 58(S1), pages 1-10, September.

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    More about this item

    Keywords

    bank regulation; diversification; home bias; sovereign-bank nexus; sovereign risk;
    All these keywords.

    JEL classification:

    • G01 - Financial Economics - - General - - - Financial Crises
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G28 - Financial Economics - - Financial Institutions and Services - - - Government Policy and Regulation

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