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Securitization of Mortgage Debt, Asset Prices and International Risk Sharing

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  • Mathias Hoffmann
  • Thomas Nitschka

Abstract

We explore the impact of mortgage securitization on the international diversification of macroeconomic risk. By making mortgage-related risks internationally tradeable, securitization contributes considerably to better international consumption risk sharing: we find that countries with the most highly developed markets for securitized mortgage debt have consumption responses to a typical idiosyncratic business cycle shock that are 20-30 percent less volatile than those experienced by countries that do not allow for mortgage securitization. Our results are based on quarterly data from a panel of 16 industrialized countries and cover the sample period 1985-2008Q1. They are robust to a range of controls for other aspects of financial globalization, international differences in the structure of housing markets and the financial system etc. Against the backdrop of the subprime crisis, these findings inevitably raise the question whether securitization could not just facilitate risk sharing in tranquil times but that it actually fails to provide international insurance in severe crisis periods. Indeed, we find that international risk sharing decreases in global asset price downturns and increases in booms. But we do not find evidence that countries with more developed securitization markets are systematically more exposed to these fluctuations in the extent to which risk can be shared across national boundaries.

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  • Mathias Hoffmann & Thomas Nitschka, 2009. "Securitization of Mortgage Debt, Asset Prices and International Risk Sharing," CESifo Working Paper Series 2527, CESifo.
  • Handle: RePEc:ces:ceswps:_2527
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    Cited by:

    1. Leibrecht Markus & Scharler Johann, 2012. "Banks, Financial Markets and International Consumption Risk Sharing," German Economic Review, De Gruyter, vol. 13(3), pages 331-351, August.
    2. Filipa Sa & Pascal Towbin & Tomasz Wieladek, 2011. "Low interest rates and housing booms: the role of capital inflows, monetary policy and financial innovation," Globalization Institute Working Papers 79, Federal Reserve Bank of Dallas.
    3. Heike Joebges & Sebastian Dullien & Alejandro Márquez-Velázquez, 2015. "What causes housing bubbles?," IMK Studies 43-2015, IMK at the Hans Boeckler Foundation, Macroeconomic Policy Institute.
    4. Nitschka, Thomas, 2011. "About the soundness of the US-cay indicator for predicting international banking crises," The North American Journal of Economics and Finance, Elsevier, vol. 22(3), pages 237-256.
    5. Zhu, Bing & Betzinger, Michael & Sebastian, Steffen, 2017. "Housing market stability, mortgage market structure, and monetary policy: Evidence from the euro area," Journal of Housing Economics, Elsevier, vol. 37(C), pages 1-21.
    6. Heike Joebges & Sebastian Dullien & Alejandro Márquez-Velázquez, 2015. "What causes housing bubbles? A theoretical and empirical inquiry," Competence Centre on Money, Trade, Finance and Development 1501, Hochschule fuer Technik und Wirtschaft, Berlin.
    7. Filipa Sá & Pascal Towbin & Tomasz Wieladek, 2014. "Capital Inflows, Financial Structure And Housing Booms," Journal of the European Economic Association, European Economic Association, vol. 12(2), pages 522-546, April.

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    More about this item

    Keywords

    financial globalization; international risk sharing; home bias; securitization; mortgage markets; asset prices; international business cycles;
    All these keywords.

    JEL classification:

    • F36 - International Economics - - International Finance - - - Financial Aspects of Economic Integration
    • F37 - International Economics - - International Finance - - - International Finance Forecasting and Simulation: Models and Applications
    • 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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