Munich Personal RePEc Archive

Securitization and Bank Stability

Di Cesare, Antonio (2009): Securitization and Bank Stability.

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Abstract

This paper analyzes the effects of CDO issuance on the risk of default of banks. Previous literature showed that the overall riskiness of a bank can increase when it sells part of the loans in its portfolio by issuing a CDO of which it retains the equity tranche. Using Monte Carlo simulations, this paper confirms previous results but also highlights that they can change substantially if one modifies the hypothesis regarding how the proceeds of securitizations are reinvested. The assessment of the effects of securitizations on bank stability is thus mainly a matter of empirical research. Using data for Italian banks I provide evidence that the securitization activity has been a relevant factor in changing the composition of the asset side of banks' balance sheets. Results also show that these changes have probably contributed to lower the average ex-ante riskiness of Italian banks. I also compare the riskiness of loans that have been securitized with that of new loans granted by the same securitizing banks using loan-by-loan data. Results show that new loans are on average riskier than loans that have been securitized, thus pointing to an increasing amount of risk to be born by banks as a consequence of the reinvestment of the proceeds of securitizations.

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