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Journal of Banking & Finance Vol. 155 2023

Complexity and the default risk of mortgage-backed securities

Monica Billio1; Alfonso Dufour2,3; Samuele Segato2,3; Simone Varotto2,3

1 Ca' Foscari University of Venice · 2 ICMA Centre · 3 University of Reading

open access

Abstract

We study the impact that lower complexity in bank securitisations has on mortgage quality and the securitisation structure. We find that mortgages issued after the announcement of new European regulation that aims to reduce deal complexity are characterised by up to 0.38% lower annual delinquency rates than in the pre-regulation period. Similarly, we show that mortgage securitisations that meet the new ‘simplicity, transparency and standardisation’ (STS) criteria have 0.77% lower annual delinquency rates and are more resilient to adverse macro-economic shocks. We find that the increased quality of the underlying loans outweighs the potential negative effects of thinner subordinated tranches in securitisations that comply with the new regulation. Overall, our findings suggest that the new European securitisation regulation has contributed to improving credit quality in the securitisation market in Europe.

DOI
10.1016/j.jbankfin.2023.106993
Volume
155
Pages
106993
Language
en
Sources
openalex crossref bibtex:phds-export.bib

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