Bank Information Sharing and Liquidity Risk

We propose a novel rationale for the existence of bank information sharing schemes. Banks may voluntarily disclose borrowers' credit history to maintain asset market liquidity. By sharing such information, banks mitigate adverse selection when selling their loans in secondary markets. This reduces the cost of asset liquidation in case of liquidity shocks. Information sharing arises endogenously when the liquidity benefit dominates the cost of losing market power in the primary loan market competition. We show banks having incentives to truthfully disclose borrowers' credit history, even if such information is non-verifiable. We also provide a rationale for promoting public credit registries.