La concentration du secteur bancaire européen: un problème dont la mesure reste à prendre

Jézabel Couppey-Soubeyran () and Théo Nicolas
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Jézabel Couppey-Soubeyran: CES - Centre d'économie de la Sorbonne - UP1 - Université Paris 1 Panthéon-Sorbonne - CNRS - Centre National de la Recherche Scientifique, PSE - Paris School of Economics - UP1 - Université Paris 1 Panthéon-Sorbonne - ENS-PSL - École normale supérieure - Paris - PSL - Université Paris Sciences et Lettres - EHESS - École des hautes études en sciences sociales - ENPC - École nationale des ponts et chaussées - CNRS - Centre National de la Recherche Scientifique - INRAE - Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement, Institut Veblen
Théo Nicolas: ACPR - Autorité de Contrôle Prudentiel et de Résolution - Autorité de Contrôle Prudentiel et de Résolution

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Abstract: The consolidation of the European banking sector could increase again with the health crisis. Its impact on the soundness of the sector and the availability of financing is often discussed, its measurement much less so. However, in this article we draw attention to a problematic aspect of concentration or market power measurements. These are generally based on unconsolidated data, which means that the national market power of groups is ignored. This results in an underestimation that we propose to correct. Our correction, based on SURFI data from the Banque de France, raises the share of assets of the five largest resident banks in the total assets of the French banking sector by about 30 percentage points. This underestimation is not neutral from the point of view of prudential policies: concentration is clearly not the same problem depending on whether it is assessed at 50% or 80%.

Date: 2021-06
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Published in Revue d'économie financière, 2021, 142 (2), pp.179-200. ⟨10.3917/ecofi.142.0179⟩

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Persistent link: https://EconPapers.repec.org/RePEc:hal:journl:hal-03968654

DOI: 10.3917/ecofi.142.0179

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