Geographic Diversification and Banks’ Funding Costs
Ross Levine, Chen Lin, Wensi Xie
Management Science · 2021 · Volume 67 · Issue 5
Abstract
We assess the impact of geographic diversification on a bank’s costs of interest-bearing liabilities. We employ a new identification strategy and discover that geographic expansion across U.S. states lowered funding costs. Consistent with expansion facilitating risk diversification, we find that (1) funding costs fall more when banks expand into states whose economies are less correlated with the banks’ state and (2) geographic diversification reduces the costs of uninsured, but not insured, deposits. Consistent with expansion intensifying agency frictions, which puts upward pressures on funding costs, we discover that geographic diversification reduces the costs of interest-bearing liabilities more in better-monitored and better-run banks. This paper was accepted by Tomasz Piskorski, finance.
Keywords
banking, banking regulation, funding cost, financial stability
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