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Financial Derivative and Energy Market Valuation: Theory and Implementation in MATLAB
book

Financial Derivative and Energy Market Valuation: Theory and Implementation in MATLAB

by Michael Mastro PhD
March 2013
Intermediate to advanced content levelIntermediate to advanced
664 pages
15h 11m
English
Wiley
Content preview from Financial Derivative and Energy Market Valuation: Theory and Implementation in MATLAB

Chapter 5: Trinomial Trees

5.1 Introduction

The trinomial tree is a clear extension of the binomial tree where the extra node adds an extra degree of freedom. The derivation of the basic trinomial tree is based on moment matching as well as a stability relation to preclude negative probabilities. The trinomial tree has a clear connection to a triangular slice of the rectangular explicit finite difference grid.

5.2 Trinomial Tree Derivation

The geometric Brownian motion stochastic differential equation

equation

can be transformed via and Ito's lemma into the normally distributed

equation

where is the continuously compounded return drift factor. Similarly, the risk-neutral evolution of the price change

equation

with a dividend yield can be transformed into the logarithm of the price change with a log-normal drift of . A derivative based on the log price of the asset follows the differential equation

In order to ...

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Publisher Resources

ISBN: 9781118501818Purchase book