Introduction to stochastic differential equations with applications to modelling in biology and finance
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書誌事項
Introduction to stochastic differential equations with applications to modelling in biology and finance
Wiley, 2019
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注記
Includes bibliographical references (p. 269-275) and index
内容説明・目次
内容説明
A comprehensive introduction to the core issues of stochastic differential equations and their effective application
Introduction to Stochastic Differential Equations with Applications to Modelling in Biology and Finance offers a comprehensive examination to the most important issues of stochastic differential equations and their applications. The author - a noted expert in the field - includes myriad illustrative examples in modelling dynamical phenomena subject to randomness, mainly in biology, bioeconomics and finance, that clearly demonstrate the usefulness of stochastic differential equations in these and many other areas of science and technology.
The text also features real-life situations with experimental data, thus covering topics such as Monte Carlo simulation and statistical issues of estimation, model choice and prediction. The book includes the basic theory of option pricing and its effective application using real-life. The important issue of which stochastic calculus, Ito or Stratonovich, should be used in applications is dealt with and the associated controversy resolved. Written to be accessible for both mathematically advanced readers and those with a basic understanding, the text offers a wealth of exercises and examples of application. This important volume:
Contains a complete introduction to the basic issues of stochastic differential equations and their effective application
Includes many examples in modelling, mainly from the biology and finance fields
Shows how to: Translate the physical dynamical phenomenon to mathematical models and back, apply with real data, use the models to study different scenarios and understand the effect of human interventions
Conveys the intuition behind the theoretical concepts
Presents exercises that are designed to enhance understanding
Offers a supporting website that features solutions to exercises and R code for algorithm implementation
Written for use by graduate students, from the areas of application or from mathematics and statistics, as well as academics and professionals wishing to study or to apply these models, Introduction to Stochastic Differential Equations with Applications to Modelling in Biology and Finance is the authoritative guide to understanding the issues of stochastic differential equations and their application.
目次
Preface xi
About the companion website xv
1 Introduction 1
2 Revision of probability and stochastic processes 9
2.1 Revision of probabilistic concepts 9
2.2 Monte Carlo simulation of random variables 25
2.3 Conditional expectations, conditional probabilities, and independence 29
2.4 A brief review of stochastic processes 35
2.5 A brief review of stationary processes 40
2.6 Filtrations, martingales, and Markov times 41
2.7 Markov processes 45
3 An informal introduction to stochastic differential equations 51
4 The Wiener process 57
4.1 Definition 57
4.2 Main properties 59
4.3 Some analytical properties 62
4.4 First passage times 64
4.5 Multidimensional Wiener processes 66
5 Diffusion processes 67
5.1 Definition 67
5.2 Kolmogorov equations 69
5.3 Multidimensional case 73
6 Stochastic integrals 75
6.1 Informal definition of the Ito and Stratonovich integrals 75
6.2 Construction of the Ito integral 79
6.3 Study of the integral as a function of the upper limit of integration 88
6.4 Extension of the Ito integral 91
6.5 Ito theorem and Ito formula 94
6.6 The calculi of Ito and Stratonovich 100
6.7 The multidimensional integral 104
7 Stochastic differential equations 107
7.1 Existence and uniqueness theorem and main proprieties of the solution 107
7.2 Proof of the existence and uniqueness theorem 111
7.3 Observations and extensions to the existence and uniqueness theorem 118
8 Study of geometric Brownian motion (the stochastic Malthusian model or Black-Scholes model) 123
8.1 Study using Ito calculus 123
8.2 Study using Stratonovich calculus 132
9 The issue of the Ito and Stratonovich calculi 135
9.1 Controversy 135
9.2 Resolution of the controversy for the particular model 137
9.3 Resolution of the controversy for general autonomous models 139
10 Study of some functionals 143
10.1 Dynkin's formula 143
10.2 Feynman-Kac formula 146
11 Introduction to the study of unidimensional Ito diffusions 149
11.1 The Ornstein-Uhlenbeck process and the Vasicek model 149
11.2 First exit time from an interval 153
11.3 Boundary behaviour of Ito diffusions, stationary densities, and first passage times 160
12 Some biological and financial applications 169
12.1 The Vasicek model and some applications 169
12.2 Monte Carlo simulation, estimation and prediction issues 172
12.3 Some applications in population dynamics 179
12.4 Some applications in fisheries 192
12.5 An application in human mortality rates 201
13 Girsanov's theorem 209
13.1 Introduction through an example 209
13.2 Girsanov's theorem 213
14 Options and the Black-Scholes formula 219
14.1 Introduction 219
14.2 The Black-Scholes formula and hedging strategy 226
14.3 A numerical example and the Greeks 231
14.4 The Black-Scholes formula via Girsanov's theorem 236
14.5 Binomial model 241
14.6 European put options 248
14.7 American options 251
14.8 Other models 253
15 Synthesis 259
References 269
Index 277
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