Introduction to the Mathematics of Finance (Graduate Studies in Mathematics, Vol. 72) (Graduate Studies in Mathematics, 72)

The modern subject of mathematical finance has undergone considerable development, both in theory and practice, since the seminal work of Black and Scholes appeared a third of a century ago. This book is intended as an introduction to some elements of the theory that will enable students and researchers to go on to read more advanced texts and research papers. The book begins with the development of the basic ideas of hedging and pricing of European and American derivatives in the discrete (i.e., discrete time and discrete state) setting of binomial tree models. Then a general discrete finite market model is introduced, and the fundamental theorems of asset pricing are proved in this setting. Tools from probability such as conditional expectation, filtration, (super)martingale, equivalent martingale measure, and martingale representation are all used first in this simple discrete framework. This provides a bridge to the continuous (time and state) setting, which requires the additional concepts of Brownian motion and stochastic calculus. The simplest model in the continuous setting is the famous Black-Scholes model, for which pricing and hedging of European and American derivatives are developed. The book concludes with a description of the fundamental theorems for a continuous market model that generalizes the simple Black-Scholes model in several directions. The Modern Subject Of Mathematical Finance Has Undergone Considerable Development, Both In Theory And Practice, Since The Seminal Work Of Black And Scholes Appeared A Third Of A Century Ago. This Book Is Intended As An Introduction To Some Elements Of The Theory That Will Enable Students And Researchers To Go On To Read More Advanced Texts And Research Papers.--book Jacket. Chapter 1. Financial Markets And Derivatives Chapter 2. Binomial Model Chapter 3. Finite Market Model Chapter 4. Black-scholes Model Chapter 5. Multi-dimensional Black-scholes Model Appendix A. Conditional Expectation And $l^p$-spaces Appendix B. Discrete Time Stochastic Processes Appendix C. Continuous Time Stochastic Processes Appendix D. Brownian Motion And Stochastic Integration R.j. Williams. Includes Bibliographical References (p. 145-147) And Index. Cover Title page Contents Preface Financial markets and derivatives Binomial model Finite market model Black-Scholes model Multi-dimensional Black-Scholes model Conditional expectation and L^{p}-spaces Discrete time stochastic processes Continuous time stochastic processes Brownian motion and stochastic integration Bibliography Index Back Cover Errata and Additional Exercises