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Optimal form of retention for securitized loans under moral hazard

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  • Dionne, Georges

    (HEC Montreal, Canada Research Chair in Risk Management)

  • Malekan, Sara

    (HEC Montreal, Canada Research Chair in Risk Management)

Abstract

We address the moral hazard problem of securitization using a principal-agent model where the investor is the principal and the lender is the agent. Our model considers structured asset-backed securitization with a credit enhancement procedure. We assume that the originator can affect the default probability and the conditional loss distribution. We show that the optimal form of retention must be proportional to the pool default loss even in the absence of systemic risk when the originator can affect the conditional distribution of portfolio losses, yet the current regulations propose a constant retention rate.

Suggested Citation

  • Dionne, Georges & Malekan, Sara, 2015. "Optimal form of retention for securitized loans under moral hazard," Working Papers 15-4, HEC Montreal, Canada Research Chair in Risk Management.
    • Handle: RePEc:ris:crcrmw:2015_004
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    1. Malekan, Sara & Dionne, Georges, 2014. "Securitization and optimal retention under moral hazard," Journal of Mathematical Economics, Elsevier, vol. 55(C), pages 74-85.
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    More about this item

    Keywords

    Securitization; optimal retention; moral hazard; principal-agent model; tranching; credit enhancement; conditional loss distribution.;
    All these keywords.

    JEL classification:

    • D80 - Microeconomics - - Information, Knowledge, and Uncertainty - - - General
    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • D86 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Economics of Contract Law
    • G18 - Financial Economics - - General Financial Markets - - - Government Policy and Regulation
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G23 - Financial Economics - - Financial Institutions and Services - - - Non-bank Financial Institutions; Financial Instruments; Institutional Investors

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