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For anyone who is interested in how CDOs or other instruments linked to baskets of credits are
modeled, this book is essential reading. The authors are a well-known team. One is
a practitioner and the other an academic. They have
published extensively on credit modeling, including the earlier book Bluhm, Overbeck
and Wagner (2002). With
this latest book, Bluhm and Overbeck walk readers through the state-of-the-art in modeling and
pricing CDOs and basket credit derivatives. Default
correlations play a critical role, which is why these are often referred to as
"correlation products."
The book is partly
a whirlwind survey of relevant literature, and partly a "roll up your sleeves"
look at how correlation products are actually being modeled by market makers
today. It is technical, but not too technical. There is more prose and
exhibits than there is formulas. A few central theorems are formally stated, but
proofs are omitted in favor of citing where they can be found in the literature.
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1. From
Single Credit Risks to Credit Portfolios
2.
Default Baskets
3.
Collateralized Debt and Synthetic Obligations
4. Some
Practical Remarks
5.
Suggestions for Further Reading |
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The book isn't
perfect. It is one of those books where the authors have extremely important
information to communicate but lack the time to do so well. It reads like a
first draft, with clarifications or explanations added through footnotes or side
comments. The system of notation is unintuitive and cumbersome. The authors
would have benefited from embracing the
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Despite such minor
problems, the book is a goldmine. If you are interested in how correlation
products are modeled in practice, I can't imagine you not reading it. There is
no other resource like it. Better-written or better organized books may some day
follow, or this book may reappear as an improved second edition. For now, the
book is unique. Read it.[November 30, 2006]
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