The concentration–stability controversy in banking: New evidence from the EU-25

Pieter IJtsma, Laura Spierdijk, Sherrill Shaffer

Research output: Contribution to journalArticleAcademicpeer-review

27 Citations (Scopus)

Abstract

This study explores whether the concentration–stability relation is affected by the level of analysis; i.e., bank-level versus country-level stability. The diverging results in the literature suggest that we may indeed expect differences between the two levels. With the z-score as the measure of financial stability, our theoretical analysis confirms that we may find such differences. Yet our empirical analysis for the EU-25 during the 1998–2014 period finds no economically significant effect of concentration on either the bank-level or the country-level z-score. The finding that concentration hardly affects stability at both levels of analysis is an indication of robustness in the empirical concentration–stability relation not previously established in the literature. This finding further suggests that neither supervisory restructuring, nor normal market-driven mergers, are likely to be substantially harmful to financial stability.
Original languageEnglish
Pages (from-to)273-284
JournalJournal of Financial Stability
Volume33
DOIs
Publication statusPublished - 2017
Externally publishedYes

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