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Securitization of mortgage debt, domestic lending, and international risk sharing

Mathias Hoffmann and Thomas Nitschka

Canadian Journal of Economics/Revue canadienne d'économique, 2012, vol. 45, issue 2, 493-508

Abstract: Abstract Securitization makes mortgage‐related risks internationally tradeable and thus contributes considerably to the international diversification of macroeconomic risk: in the years 2003–2008, the increase in international cross‐holdings of securitized mortgage debt has lowered industrialized countries’ conditional consumption volatility (relative to the United States) by about 10–15 percentage points. We turn to the role of domestic credit in explaining this result. Domestic credit leads to better international risk sharing only if debt is securitized and traded internationally. Conversely, the risk‐sharing benefits from securitization seem to evaporate if credit dries up – as it did in the recent financial crisis. La titrisation fait que les risques attachés aux hypothèques peuvent être transigés internationalement. Voilà qui contribue de manière significative à la diversification internationale des risques macroéconomiques : dans les années 2003–2008, l’accroissement dans la dette hypothécaire titrisée détenue dans d’autres pays a réduit la volatilité de la consommation relative (par rapport aux États‐Unis) des pays industrialisés de 10–15 points de pourcentage. On examine le rôle du crédit domestique dans l’explication de ce résultat. On montre que le crédit domestique entraîne un meilleur partage international du risque seulement si la dette est titrisée et négociée internationalement. A contrario, les avantages de la titrisation semblent s’évaporer si le crédit s’assèche – comme ce fut le cas dans la récente crise financière.

Date: 2012
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Citations: View citations in EconPapers (4)

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https://doi.org/10.1111/j.1540-5982.2012.01701.x

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