Assessing the financial and informational role of supervisory stress tests: EU-wide 2018 stress testvis-à-visEU-wide 2021 stress test

Dimitrios Karakostas, Ioannis Tsakalos and Athanasios Fassas

Journal of Financial Regulation and Compliance, 2023, vol. 31, issue 4, 397-419

Abstract: Purpose - The supervisory stress test evaluates the capital adequacy and profit-generation capacity of systemic banking institutions under baseline and adverse macroeconomic scenarios. This study aims to assess the financial and informational role of European stress tests and substantiate the impact of their disclosures by examining the EU-wide 2018 stress testvis-à-visthe EU-wide 2021 stress test in terms of how and to what extent the stock prices of the stress-tested banks have been affected. Design/methodology/approach - This study applies standard event study methodologies to evaluate the reactions of market participants during the EU-wide 2018 and 2021 stress test exercises. We examine several “large” events in both the exercises for a selected sample of European banks. Findings - The results of our event study analysis show that the EU-wide 2018 and 2021 stress tests come subsequent to considerable abnormal price movements. The announcement of stress test results triggered tangible investor reactions, indicating the informational value of stress tests in reducing bank opacity. This supervisory “toolkit” is considered extremely important, as it provides meaningful insights to the supervisors of the banking institutions and the market stakeholders by improving the transparency of the financial sector, allowing them to segregate banks more effectively. Originality/value - This study constitutes one of the earliest attempts to shed light on the financial and information role of the European supervisory stress tests by comparing the EU-wide 2018 and the EU-wide 2021 stress test exercises. Moreover, it provides concrete empirical evidence and qualitative analysis to explore certain aspects of the European and US stress tests.

Keywords: Stress tests; Event study analysis; Bank opacity; Regulatory disclosures (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:eme:jfrcpp:jfrc-06-2022-0075

DOI: 10.1108/JFRC-06-2022-0075

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