The Theory of Bank Risk-Taking and Competition Revisited

John H. Boyd
Gianni De Nicoló
Publication Type: 
Papers
Journal Name: 
The Journal of Finance
Journal Volume: 
60
Journal Number: 
3
Pages: 
1329-1343
Publication Year: 
2005

There is a large 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.

Region: 
Global
Topic: 
Risk
Topic: 
Financial Institutions
Topic: 
General Equilibrium
Topic: 
Economic Modeling