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Initial impact of Basel III finalization<br />

The effect of Basel III finalisation on the euro area<br />

CET1 ratio<br />

The effect of Basel III finalisation on the total euro area REA<br />

Source: Budnik et al (2021) The growth-at-risk perspective on the system-wide impact of Basel III finalization in the euro area<br />

• An increase in REA translates into the initial reduction in the euro area CET1 ratio of around 2.5 pp (and<br />

about 0.3 pp less with a gradual implementation of the output floor)<br />

• The revision of methodologies for credit, market risk and the output floor each contributes about 7pp to the<br />

increase in REA, while the revision of operational risk adds additional 4pp<br />

25<br />

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