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Integrating stress tests within the Basel III capital framework: a macroprudentially coherent approach

Author

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  • Pierluigi Bologna

    () (Bank of Italy)

  • Anatoli Segura

    () (Bank of Italy)

Abstract

In the post-crisis era banks’ capital adequacy is established by the Basel III capital standards and, in many jurisdictions, also by supervisory stress tests. In this paper we first describe the ways in which supervisory stress tests can supplement the risk-based capital framework of Basel III and how this could be codified with a stress test buffer. We then argue that in order to ensure coherence with the macroprudential objectives of Basel III, the severity of supervisory stress tests should be procyclical. In addition, to increase the transparency and predictability of the overall capital framework, severity choices should follow a constrained discretion approach based on a simple rule. Finally, we analyze supervisory stress testing practices across some jurisdictions and find that while the United States and the UK frameworks are in line with some of the elements of our proposal, including most notably the need for procyclical severity, this is not the case in the euro area.

Suggested Citation

  • Pierluigi Bologna & Anatoli Segura, 2016. "Integrating stress tests within the Basel III capital framework: a macroprudentially coherent approach," Questioni di Economia e Finanza (Occasional Papers) 360, Bank of Italy, Economic Research and International Relations Area.
  • Handle: RePEc:bdi:opques:qef_360_16
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    Keywords

    stress test; capital regulation; macroprudential policy;

    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

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