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Navigating Banking Resilience: Bail-ins & Bailouts in the Czech Banking Sector

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  • Josef Sveda

Abstract

How much capital is truly enough to shield banks from default? Understanding this threshold is critical for designing regulatory frameworks that balance financial stability with economic growth. This paper develops a reverse stress testing framework to assess the resilience of the banking sector under extreme credit shocks. It focuses on the conditions under which banks facing distress transition from bail-ins to government bailouts, using the Czech banking sector as a case study. Our findings indicate that a capital ratio of 23.5% is sufficient to absorb losses comparable to the most severe stress experienced during the Global Financial Crisis (GFC), preventing the need for public intervention. Moreover, we show that regulatory capital buffers are well-calibrated, covering losses up to the second-largest stress event observed in the GFC. Unlike many reverse stress testing approaches, our model explicitly accounts for the dynamic effects of risk-weighted asset (RWA) adjustments, revealing that static RWA assumptions may overestimate capital resilience. These results provide critical insights for policymakers, suggesting that capital adequacy requirements remain well-calibrated but warrant further scrutiny regarding how risk weights evolve under stress conditions.

Suggested Citation

  • Josef Sveda, 2025. "Navigating Banking Resilience: Bail-ins & Bailouts in the Czech Banking Sector," Working Papers 2025/5, Czech National Bank, Research and Statistics Department.
    • Handle: RePEc:cnb:wpaper:2025/5
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    File URL: https://www.cnb.cz/export/sites/cnb/en/economic-research/.galleries/research_publications/cnb_wp/cnbwp_2025_05.pdf
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    References listed on IDEAS

    as
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    JEL classification:

    • E58 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Central Banks and Their Policies
    • G01 - Financial Economics - - General - - - Financial Crises
    • G18 - Financial Economics - - General Financial Markets - - - Government Policy and Regulation
    • 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
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill
    • G33 - Financial Economics - - Corporate Finance and Governance - - - Bankruptcy; Liquidation

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