The Oxford Guide to
Financial Modeling

Professors Ho and Lee are authors of the famous Ho and Lee interest rate model. Both have had long and illustrative careers as academics and practitioners. As one might expect, they have much to say about finance, and that is evident in the physical heft of this book. Weighing 3.3 pounds, it is packed with information. Targeting primarily a university audience, the book is positioned as an alternative to Hull's (2002) aging classic.

 

Refreshingly, the authors chart their own course. This isn't just an elementary introduction to financial engineering. The book is a soup-to-nuts exploration of modeling in finance. Topics include:

portfolio theory,

equity, fixed income and credit financial engineering,

financial risk management, and

corporate finance, including valuation and real options.

The authors may have been influenced by the Black, Derman and Toy interest rate model. That model was published in a completely non-technical article in the Financial Analysts Journal. Not a single formula appeared in the entire paper yet, in plain English, those authors explained to readers how to implement their model. Such accessibility is no doubt a reason for that model's popularity. In this book, Ho and Lee relegate most formulas to chapter appendices, favoring lengthy plain-English explanations in the body of the text. I think, however, the result is wanting. Black, Derman and Toy labored over the drafting of their paper for months, writing and rewriting it over and over again. It was just a few pages long. This book has 735 pages, so the authors had to spread their efforts more thinly. The writing is good but not brilliant. Honestly, it could use some polishing. More formulas would have clarified discussions. With formulas sparse, I think readers will be frustrated. Another shortcoming is a complete absence of exercises.

Contents

Derivatives Valuation

1. Introduction: Discounted Cash Flow Method

2. Equity Market: The Capital Asset Pricing Model

3. Bond Markets: The Bond Model

4. Equity Options: the Black-Scholes Model

5. Interest Rate Derivatives: Interest Rate Models

6. Implied Volatility Surface: Calibrating the Models

7. Exotic Options: Bellman's Optimization, the Filtration Model, and the n-Factor Model

Corporate Liabilities

8. Investment Grade Corporate Bonds: Option Adjusted Spreads

9. High-Yield Corporate Bonds: The Structural Models

10. Convertibles, MBS/CMO, and Other Bonds: The Behavioral Models

11. Financial Institutions' Liabilities: Required Option Adjusted Spread

Corporate Finance

12. Valuation of a Firm: The Business Model

13. Strategic Value of a Firm: Real Options

14. Optimal Corporate Financial Decisions: Corporate Model

15. Risk Management

16. Financial Institutions: Applications of Financial Models

17. Structured Finance: Foreign Exchange Models

18. Concluding Thoughts

19. Technical Matters: Market Model and Binomial Lattices

A challenge for all authors of elementary financial engineering texts is the question of how to use stochastic calculus. Readers of such books cannot be expected to have any background in the subject, so what to do? Don't mention stochastic calculus? Gloss it over? Delve into a lengthy but distracting introduction? Few books handle the problem well, and this one is no exception. Targeting a mathematically unsophisticated audience, the authors shun all use of calculus in the body of the first few chapters. Then, when they start to discuss interest rate models, they suddenly start tossing around stochastic differential equations. Ouch! The students they were catering to in the earlier chapters are going to be lost.

Used in a classroom, I think this could be a good text. It depends on the instructor. For self study, I do not recommend it. Actually, it may appeal most to readers who are more sophisticated than the target audience. Covering so many models, it could serve as a competent reference. I think the treatment of interest rate models is especially informative.

 

 

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