Interest Rate Models
An Introduction

This is a practical, hands-on introduction to fixed income financial engineering in complete markets. It is suitable for readers who have already mastered financial engineering for equity underliers and want to extend their skills to modeling term structures.

 

The book starts with discrete-time models and proceeds to consider the classic continuous-time models: Vasicek, Ho and Lee, Hull and White, HJM, etc. It brings readers up to current methodologies with discussions of positive interest models and the Libor Market Model.

Risk neutral methods are emphasized, but the partial differential equations (PDEs) approach is also covered because of the numerical methods it facilitates. A lengthy chapter on numerical methods delivers on this promise, covering lattice, Monte Carlo and finite difference approaches. Closing chapters on yield curve construction and credit risk modeling are too brief to be of much value.

I really like this book because, although it makes use of stochastic calculus as necessary, it doesn't beat you over the head with it. It is a book about theory, but it is a practical book about theory. Discussions are mostly rigorous, but not completely. The book's focus is on explaining the mathematics at a level that many readers will be able to comprehend. Each chapter closes with exercises that will get you using that mathematics.

The book isn't perfect. Its notation can be cumbersome. Also, the writing is cryptic at points. These problems make reading the book more work than it should be, but they are not serious enough to dissuade you from doing so.

If you are familiar with risk neutral valuation, Radon-Nikodyme derivatives and changes of numeraire, you are ready to study term structure models. I recommend that you read this book side-by-side with James and Webber (2000). Look to this book for theory. Look to James and Webber for practice. Together, they are an unbeatable combination.

Contents

1. Introduction to Bond Markets

Bonds

Fixed-Interest Bonds

STRIPS

Bonds with Built-in Options

Index-Linked Bonds

General Theories of Interest Rates

2. Arbitrage-Free Pricing

Example of Arbitrage: Parallel Yield Curve Shifts

Fundamental Theorem of Asset Pricing

The Long-Term Spot Rate

Factors

A Bond Is a Derivative

Put-Call Parity

Types of Model

3. Discrete-Time Binomial Models

A Simple No-Arbitrage Model

The Ho and Lee No-Arbitrage Model

Recombining Binomial Model

Models for the Risk-Free Rate of Interest

Futures Contracts

4. Continuous-Time Interest Rate Models

One-Factor Models for the Risk-Free Rate

The Martingale Approach

The PDE Approach to Pricing

Further Comment on the General Results

The Vasicek Model

The Cox-Ingersoll-Ross Model

A Comparison of the Vasicek and Cox-Ingersoll-Ross Models

Affine Short-Rate Models

Other Short-Rate Models

Options on Coupon-Paying Securities

5. No-Arbitrage Models

Markov Models

The Heath-Jarrow-Morton (HJM) Framework

Relationship between HJM and Markov Models

6. Multifactor Models

Affine Models

Consols Models

Multifactor Heath-Jarrow-Morton Models

Options on Coupon-Paying Securities

Quadratic Term-Structure Models (QTSMs)

Other Multifactor Models

7. The Forward-Measure Approach

A New Numeraire

Change of Measure

Derivative Payments

A Replicating Strategy

Evaluation of a Derivative Price

Equity Options with Stochastic Interest

8. Positive Interest

Mathematical Development

The Flesaker and Hughston Approach

Derivative Pricing

Examples

9. Market Models

Market Rates of Interest

LIBOR Market Models: the BGM Approach

Simulation of LIBOR Market Models

Swap Market Models

10 Numerical Methods

Choice of Measure

Lattice Methods

Finite-Difference Methods

Numerical Examples

Simulation Methods

11 Credit Risk

Structural Models

A Discrete-Time Model

Reduced-Form Models

Derivative Contracts with Credit Risk

12 Model Calibration

Descriptive Models for the Yield Curve

A General Parametric Model

Estimation

Splines

Volatility Calibration

 

 

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