Regulatory stress tests and bank responses

Vol: 
77/2020
Author name: 
Janda K
Kravtsov O
Year: 
2020
Month: 
August
Abstract: 

In this paper, we investigate how the regulatory stress test framework in the European Union affects banks’ investment decisions and portfolio choices. Using the causal inference and event study methodology, we document a substantial impact of EU-wide stress tests in 2011, 2014 and 2016 on the banks’ portfolio strategies. The banks subject to regulatory stress tests tend to structure their portfolios with lower risk assets that is reflected in a decline in risk-weighted assets as compared to the control group. At the same time, the dynamic of realized risk that is measured by the proportion of non-performing exposure in portfolios remains unaffected. The estimates based on two alternative subsamples indicate that the magnitude of such effect rise with the increase in the size of the bank´s assets.

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