Systematic and Liquidity Risk in Subprime-Mortgage Backed Securities

Mardi Dungey, Gerald P Dwyer, Thomas Flavin

    Research output: Contribution to journalArticle


    The misevaluation of risk in securitized financial products is central to understanding the Financial Crisis of 2007-2008. This paper characterizes the evolution of factors affecting collateralized debt obligations (CDOs) based on subprime mortgages. A key feature of subprime-mortgage backed indices is that they are distinct in their vintage of issuance. Using a latent factor framework that incorporates this vintage effect, we show the increasing importance of a common factor on more senior tranches during the crisis. We examine this common factor and its relationship with spreads. We estimate the effects of the financial crisis on the common factor.
    Original languageEnglish
    Pages (from-to)5-32
    JournalOpen Economies Review
    Issue number1
    Publication statusPublished - 2013


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