Bank Competition: Measurement, Decision-Making, and Risk-Taking

This paper investigates whether greater competition increases or decreases individual bank and banking system risk. Using a new text-based measure of competition, and an instrumental variables analysis that exploits exogenous variation in bank deregulation, we provide robust evidence that greater competition increases both individual bank risk and a bank's contribution to system-wide risk. Specifically, we find that higher competition is associated with lower underwriting standards, less timely loan loss recognition, and a shift toward noninterest revenue. Further, we find that higher competition is associated with higher stand-alone risk of individual banks, greater sensitivity of a bank's downside equity risk to system-wide distress, and a greater contribution by individual banks to downside risk of the banking sector.