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Stress test precision and bank competition

Author

Listed:
  • Moreno, Diego
  • Takalo, Tuomas
Abstract
We study a competitive banking sector in which banks choose the level of risk of their asset portfolios and, upon the public disclosure of stress test results, raise funding by promising investors a repayment. We show that competition forces banks to choose risky assets so as to promise investors high repayments, and to gamble on favorable stress test results. Increasing stress test precision increases banks' asset riskiness but also improves allocative efficiency. When risk taking is not too sensitive to the precision of information, maximal transparency maximizes both stability and surplus. In contrast, when banks exercise market power assets are less risky, while opacity maximizes banks' stability and, when the social cost of bank failure is sufficiently large, the surplus as well. Our results in overall highlight the need to take into account the structure of banking industry when designing stress tests.

Suggested Citation

  • Moreno, Diego & Takalo, Tuomas, 2024. "Stress test precision and bank competition," Bank of Finland Research Discussion Papers 3/2024, Bank of Finland.
    • Handle: RePEc:zbw:bofrdp:281999
    as

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    References listed on IDEAS

    as
    1. Miguel Faria-e-Castro & Joseba Martinez & Thomas Philippon, 2017. "Runs versus Lemons: Information Disclosure and Fiscal Capacity," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 84(4), pages 1683-1707.
    2. Diego Moreno & Tuomas Takalo, 2016. "Optimal Bank Transparency," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 48(1), pages 203-231, February.
    3. Yehning Chen & Iftekhar Hasan, 2008. "Why Do Bank Runs Look Like Panic? A New Explanation," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 40(2‐3), pages 535-546, March.
    4. Matthieu Bouvard & Pierre Chaigneau & Adolfo De Motta, 2015. "Transparency in the Financial System: Rollover Risk and Crises," Journal of Finance, American Finance Association, vol. 70(4), pages 1805-1837, August.
    5. Ari Hyytinen & Tuomas Takalo, 2002. "Enhancing Bank Transparency: A Re-assessment," Review of Finance, European Finance Association, vol. 6(3), pages 429-445.
    6. John H. Boyd & Gianni De Nicoló, 2005. "The Theory of Bank Risk Taking and Competition Revisited," Journal of Finance, American Finance Association, vol. 60(3), pages 1329-1343, June.
    7. Chen, Yehning & Hasan, Iftekhar, 2006. "The transparency of the banking system and the efficiency of information-based bank runs," Journal of Financial Intermediation, Elsevier, vol. 15(3), pages 307-331, July.
    8. Michael Rothschild & Joseph Stiglitz, 1976. "Equilibrium in Competitive Insurance Markets: An Essay on the Economics of Imperfect Information," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 90(4), pages 629-649.
    9. Goldstein, Itay & Leitner, Yaron, 2018. "Stress tests and information disclosure," Journal of Economic Theory, Elsevier, vol. 177(C), pages 34-69.
    10. Iachan, Felipe S. & Nenov, Plamen T., 2015. "Information quality and crises in regime-change games," Journal of Economic Theory, Elsevier, vol. 158(PB), pages 739-768.
    11. Xavier Vives, 2016. "Competition and Stability in Banking: The Role of Regulation and Competition Policy," Economics Books, Princeton University Press, edition 1, number 10741.
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    Cited by:

    1. Moreno, Diego & Takalo, Tuomas, 2024. "Stress test precision and bank competition," Economics Letters, Elsevier, vol. 238(C).

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    More about this item

    Keywords

    financial stability; stress tests; bank transparency; banking regulation; bank competition;
    All these keywords.

    JEL classification:

    • 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
    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness

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