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Bank Concentration and Fragility. Impact and Mechanics

In: The Risks of Financial Institutions

Public policy debates and theoretical disputes motivate this paper%u2019s examination of (i) the relationship between bank concentration and banking system fragility and (ii) the mechanisms underlying this relationship. We find no support for the view that concentration increases the fragility of banks. Rather, banking system concentration is associated with a lower probability that the country suffers a systemic banking crisis. In terms of policies, we find that (i) regulations and institutions that facilitate competition in banking are associated with less  not more -- banking system fragility and (ii) including these policy indicators does not change the results on concentration. This suggests that concentration is a proxy for something else besides the competitive environment. Also, we do not find that official capital regulations, reserve requirements, or official prudential regulations lower crises probabilities. Finally, we present suggestive evidence that concentrated banking systems tend to have larger, better-diversified banks, which may help account for the positive link between concentration and stability.

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This chapter was published in:
  • Mark Carey & René M. Stulz, 2007. "The Risks of Financial Institutions," NBER Books, National Bureau of Economic Research, Inc, number care06-1, December.
  • This item is provided by National Bureau of Economic Research, Inc in its series NBER Chapters with number 9610.
    Handle: RePEc:nbr:nberch:9610
    Contact details of provider: Postal: National Bureau of Economic Research, 1050 Massachusetts Avenue Cambridge, MA 02138, U.S.A.
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