Systemically Important Banks: A Permutation Test Approach

In this work we propose the use of a nonparametric procedure to investigate the relationship between the Regulator's Global Systemically Important Banks (G-SIBs) classification and the equity-based systemic risk measures. The proposed procedure combines several permutation tests to investigate the equality of the multivariate distribution of two groups and assumes only the hypothesis of exchangeability of variables. In our novel approach, the weights used in the combination of tests are obtained using the Particle Swarm Optimization heuristic and quantify the informativeness about the selection. Finally, the p-value of the combined test measures the reliability of the result. Empirical results about the selection of G-SIBs show how considering the systematic (β), stress (∆CoVaR) and connectedness components (in-out connection) of systemic risk cover more than 70% of weight in all the considered years.

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Combining permutation tests to rank systemically important banks

Frattarolo

Parpinel

Pizzi

2019

Stat Methods Appl

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Systemically Important Banks: A Permutation Test Approach

Cited by 1 publication

References 13 publications

Combining permutation tests to rank systemically important banks

Combining permutation tests to rank systemically important banks

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