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Pooling, Tranching and Credit Expansion

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  • Spiros Bougheas

Abstract

Traditionally banks have used securitization for expanding credit and thus their profitability. It has been well documented that, at least before the 2008 crisis, many banks were keeping a high proportion of the securities that they created on their own balance-sheets. Those securities retained included both the high-risk ‘equity’ tranche and the low-risk AAA-rated tranche. This paper builds a simple model of securitization that accounts for the above retention strategies. Banks in the model retained the equity tranche as skin in the game in order to mitigate moral hazard concerns while they post the low-risk tranche as collateral in order to take advantage of the yield curve. When variations in loan quality are introduced the predicted retention strategies match well those found in empirical studies.

Suggested Citation

  • Spiros Bougheas, "undated". "Pooling, Tranching and Credit Expansion," Discussion Papers 12/10, University of Nottingham, Centre for Finance, Credit and Macroeconomics (CFCM).
  • Handle: RePEc:not:notcfc:12/10
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    Cited by:

    1. Spiros Bougheas & Tim Worrall, 2017. "Portfolio Sales and Signaling," Discussion Papers 2017/01, University of Nottingham, Centre for Finance, Credit and Macroeconomics (CFCM).

    More about this item

    Keywords

    Securitization; Tranching; Credit Expansion;

    JEL classification:

    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G24 - Financial Economics - - Financial Institutions and Services - - - Investment Banking; Venture Capital; Brokerage

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