Tranching and Rating |
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Authors: | Michael J Brennan Julia Hein Ser-Huang Poon |
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Institution: | Anderson School, UCLA and the Manchester Business School E-mail:; University of Konstanz, Department of Economics E-mail:; Manchester Business School E-mail: |
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Abstract: | In this paper we analyse the source and magnitude of marketing gains from selling structured debt securities at yields that reflect only their credit ratings, or specifically at yields on equivalently rated corporate bonds. We distinguish between credit ratings that are based on probabilities of default and ratings that are based on expected default losses. We show that subdividing a bond issued against given collateral into subordinated tranches can yield significant profits under the hypothesised pricing system. Increasing the systematic risk or reducing the total risk of the bond collateral increases the profits further. The marketing gain is generally increasing in the number of tranches and decreasing in the rating of the lowest rated tranche. |
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Keywords: | credit ratings collateralised debt obligations expected loss rate default probability systemic risk |
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