The Journal of Finance publishes leading research across all the major fields of finance. It is one of the most widely cited journals in academic finance, and in all of economics. Each of the six issues per year reaches over 8,000 academics, finance professionals, libraries, and government and financial institutions around the world. The journal is the official publication of The American Finance Association, the premier academic organization devoted to the study and promotion of knowledge about financial economics.
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The Theory of Bank Risk Taking and Competition Revisited
Published: 05/03/2005 | DOI: 10.1111/j.1540-6261.2005.00763.x
JOHN H. BOYD, GIANNI DE NICOLÓ
There is a large body of literature that concludes that—when confronted with increased competition—banks rationally choose more risky portfolios. We argue that this literature has had a significant influence on regulators and central bankers. We review the empirical literature and conclude that the evidence is best described as “mixed.” We then show that existing theoretical analyses of this topic are fragile, since there exist fundamental risk‐incentive mechanisms that operate in exactly the opposite direction, causing banks to become more risky as their markets become more concentrated. These mechanisms should be essential ingredients of models of bank competition.