Understanding Bank Runs: The Importance of Depositor-Bank Relationships

We use unique depositor-level data for a bank that faced a run to understand the factors that affect depositor behavior. We find uninsured depositors are most likely to run. Deposit insurance helps, but is only partially effective. Bank-depositor relationships mitigate runs, suggesting that relation...

Full description

Bibliographic Details
Main Authors: Iyer, Rajkamal, Puri, Manju
Other Authors: Sloan School of Management
Format: Article
Language:en_US
Published: American Economic Association 2012
Online Access:http://hdl.handle.net/1721.1/75113
https://orcid.org/0000-0002-3193-0441
Description
Summary:We use unique depositor-level data for a bank that faced a run to understand the factors that affect depositor behavior. We find uninsured depositors are most likely to run. Deposit insurance helps, but is only partially effective. Bank-depositor relationships mitigate runs, suggesting that relationship with depositors help banks reduce fragility. In addition, we also find that social networks matter. Finally, we find long-term effects of a solvent bank run in that depositors who run do not return back to the bank. Our results help understand the underlying dynamics of bank runs and hold important policy implications.