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Abstract

Two alternatives research hypotheses concerning how small business lending affects bank profitability are tested. The specialization hypothesis argues for higher profitability than other banks due to increased focus on small business lending, whereas the diversification hypothesis asserts that small business lenders' profitability will be lower than other more diversified banks. Using the rate of return on assets as the profit measure, we find that small business exposure tends to have neutral or positive effects on bank profitability after taking into account bank risk. Using efficient frontier analyses that focus on the rate of return on equity, we find that business lenders reap benefits from specialization, particularly in terms of reducing failure risk. We conclude that the evidence supports the specialization hypothesis.

JEL Codes

G21, M13

Keywords

Bank, Banking, Risk, Lending, Small Business

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