Data Management

The Impact Of Public Guarantees On Bank Risk Taking: Evidence From A Natural Experiment

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Executive Summary

In 2001, government guarantees for savings banks in Germany were removed following a law suit. The authors use this natural experiment to examine the effect of government guarantees on bank risk taking, using a large data set of matched bank/borrower information. The results suggest that banks whose government guarantee was removed reduced credit risk by cutting off the riskiest borrowers from credit. At the same time, the banks also increased interest rates on their remaining borrowers. The effects are economically large: the Z-Score of average borrowers increased by 7.5% and the average loan size declined by 17.2%. Remaining borrowers paid 46 basis points higher interest rates, despite their higher quality.

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