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

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  • Mathias Hoffmann
  • Thomas Nitschka

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.

Suggested Citation

  • Mathias Hoffmann & Thomas Nitschka, 2012. "Securitization of mortgage debt, domestic lending, and international risk sharing," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 45(2), pages 493-508, May.
  • Handle: RePEc:wly:canjec:v:45:y:2012:i:2:p:493-508
    DOI: 10.1111/j.1540-5982.2012.01701.x
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    1. Nitschka, Thomas, 2011. "Banking sectors' international interconnectedness: Implications for consumption risk sharing in Europe," VfS Annual Conference 2011 (Frankfurt, Main): The Order of the World Economy - Lessons from the Crisis 48684, Verein für Socialpolitik / German Economic Association.
    2. Devereux, Michael B. & Kollmann, Robert, 2012. "International Risk Sharing," MPRA Paper 70129, University Library of Munich, Germany.
    3. Alla Koblyakova & Michael White, 2017. "Supply driven mortgage choice," Urban Studies, Urban Studies Journal Limited, vol. 54(5), pages 1194-1210, April.
    4. De Grauwe, Paul & Ji, Yuemei, 2016. "Flexibility versus Stability: A difficult trade-off in the eurozone," CEPS Papers 11530, Centre for European Policy Studies.
    5. Botta, Alberto & Caverzasi, Eugenio & Russo, Alberto, 2022. "When complexity meets finance: A contribution to the study of the macroeconomic effects of complex financial systems," Research Policy, Elsevier, vol. 51(8).
    6. De Grauwe Paul & Ji Yuemei, 2018. "Core-Periphery Relations in the Eurozone," The Economists' Voice, De Gruyter, vol. 15(1), pages 1-15, December.

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    More about this item

    JEL classification:

    • F36 - International Economics - - International Finance - - - Financial Aspects of Economic Integration
    • F41 - International Economics - - Macroeconomic Aspects of International Trade and Finance - - - Open Economy Macroeconomics
    • G15 - Financial Economics - - General Financial Markets - - - International Financial Markets
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages

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