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Author: Vicky Maria Fasen
Publisher:
ISBN:
Category :
Languages : en
Pages : 218
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Author: Vicky Maria Fasen
Publisher:
ISBN:
Category :
Languages : en
Pages : 218
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Empirical volatility changes in time and exhibits tails, which are heavier than those of normal distributions. Moreover, empirical volatility has - sometimes quite substantial - upwards jumps and clusters on high levels. We investigate classical and non-classical stochastic volatility models with respect to their extreme behavior: subexponential Lévy driven MA processes in the maximum domain of attraction of the Gumbel distribution, regularly varying mixed MA processes, Ornstein-Uhlenbeck processes with exponentially decreasing tails and COGARCH processes. The basic volatility models of this thesis are subexponential Lévy driven MA processes $Y(t)=\int_{-\infty}^{\infty}f(t-s)\, dL(s)$ for $t\in \R$ where f is a deterministic function and L is a Lévy process. In Chapter 1 we study the extremal behavior of subexponential MA processes in the maximum domain of attraction of the Gumbel distribution and in Chapter 2 of the Fréchet distribution. The behavior is quite different in these different regimes. For both classes we give sufficient conditions for the kernel function f, such that a stationary version of the MA process Y exists, which preserves the infinitely divisibility of L. We calculate the tail behavior of the stationary distribution, which is again subexponential and in the same maximum domain of attraction as the driving Lévy process L. Hence they capture heavy tails and volatility jumps. Our investigation on the extremal behavior of Y is based on a discrete-time skeleton of Y chosen to incorporate those times, where large jumps of the Lévy process L and extremes of the kernel function f occur. Adding marks to this discrete-time skeleton, we obtain, by the weak limit of marked point processes, complete information about the extremal behavior. A complementary result guarantees the convergence of running maxima. Both models have volatility clusters. Regularly varying MA processes have long high level excursion in contrast to subexp.
Author: Albert N. Shiryaev
Publisher: Springer Science & Business Media
ISBN: 0387283595
Category : Mathematics
Languages : en
Pages : 372
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Book Description
Since the pioneering work of Black, Scholes, and Merton in the field of financial mathematics, research has led to the rapid development of a substantial body of knowledge, with plenty of applications to the common functioning of the world’s financial institutions. Mathematics, as the language of science, has always played a role in the development of knowledge and technology. Presently, the high-tech character of modern business has increased the need for advanced methods, which rely to a large extent on mathematical techniques. It has become essential for the financial analyst to possess a high degree of proficiency in these mathematical techniques.
Author: Fred Espen Benth
Publisher: Springer Science & Business Media
ISBN: 3540708472
Category : Mathematics
Languages : en
Pages : 672
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The Abel Symposium 2005 was organized as a tribute to the work of Kiyosi Ito on the occasion of his 90th birthday. Distinguished researchers from all over presented the newest developments within the exciting and fast growing field of stochastic analysis. This volume combines both papers from the invited speakers and contributions by the presenting lecturers. In addition, it includes the Memoirs that Kiyoshi Ito wrote for this occasion.
Author: Wim Schoutens
Publisher: John Wiley & Sons
ISBN: 0470685069
Category : Business & Economics
Languages : en
Pages : 213
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Book Description
This book is an introductory guide to using Lévy processes for credit risk modelling. It covers all types of credit derivatives: from the single name vanillas such as Credit Default Swaps (CDSs) right through to structured credit risk products such as Collateralized Debt Obligations (CDOs), Constant Proportion Portfolio Insurances (CPPIs) and Constant Proportion Debt Obligations (CPDOs) as well as new advanced rating models for Asset Backed Securities (ABSs). Jumps and extreme events are crucial stylized features, essential in the modelling of the very volatile credit markets - the recent turmoil in the credit markets has once again illustrated the need for more refined models. Readers will learn how the classical models (driven by Brownian motions and Black-Scholes settings) can be significantly improved by using the more flexible class of Lévy processes. By doing this, extreme event and jumps can be introduced into the models to give more reliable pricing and a better assessment of the risks. The book brings in high-tech financial engineering models for the detailed modelling of credit risk instruments, setting up the theoretical framework behind the application of Lévy Processes to Credit Risk Modelling before moving on to the practical implementation. Complex credit derivatives structures such as CDOs, ABSs, CPPIs, CPDOs are analysed and illustrated with market data.
Author: Kathrin Glau
Publisher: Springer
ISBN: 331909114X
Category : Mathematics
Languages : en
Pages : 434
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Book Description
Quantitative models are omnipresent –but often controversially discussed– in todays risk management practice. New regulations, innovative financial products, and advances in valuation techniques provide a continuous flow of challenging problems for financial engineers and risk managers alike. Designing a sound stochastic model requires finding a careful balance between parsimonious model assumptions, mathematical viability, and interpretability of the output. Moreover, data requirements and the end-user training are to be considered as well. The KPMG Center of Excellence in Risk Management conference Risk Management Reloaded and this proceedings volume contribute to bridging the gap between academia –providing methodological advances– and practice –having a firm understanding of the economic conditions in which a given model is used. Discussed fields of application range from asset management, credit risk, and energy to risk management issues in insurance. Methodologically, dependence modeling, multiple-curve interest rate-models, and model risk are addressed. Finally, regulatory developments and possible limits of mathematical modeling are discussed.
Author: Holger Rootzén
Publisher:
ISBN:
Category :
Languages : en
Pages : 76
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Author: Holger Rootzén
Publisher:
ISBN:
Category :
Languages : en
Pages : 41
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In this paper extremes of non-normal stable moving average processes are studied. The extremes are described as a marked point process, consisting of the point process of (separated) exceedances of a level together with marks associated with the points, a mark being the normalized sample path of X(t) around an exceedance. It is proved that this marked point process converges in distribution as the level increases to infinity. The limiting distribution is that of a Poisson process with independent marks which have random heights but otherwise are deterministic. As a byproduct of the proof for the continuous-time case, a result on sample path continuity of stable processes is obtained.
Author: Wim Schoutens
Publisher: Wiley
ISBN: 9780470851562
Category : Mathematics
Languages : en
Pages : 200
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Book Description
Financial mathematics has recently enjoyed considerable interest on account of its impact on the finance industry. In parallel, the theory of L?vy processes has also seen many exciting developments. These powerful modelling tools allow the user to model more complex phenomena, and are commonly applied to problems in finance. L?vy Processes in Finance: Pricing Financial Derivatives takes a practical approach to describing the theory of L?vy-based models, and features many examples of how they may be used to solve problems in finance. * Provides an introduction to the use of L?vy processes in finance. * Features many examples using real market data, with emphasis on the pricing of financial derivatives. * Covers a number of key topics, including option pricing, Monte Carlo simulations, stochastic volatility, exotic options and interest rate modelling. * Includes many figures to illustrate the theory and examples discussed. * Avoids unnecessary mathematical formalities. The book is primarily aimed at researchers and postgraduate students of mathematical finance, economics and finance. The range of examples ensures the book will make a valuable reference source for practitioners from the finance industry including risk managers and financial product developers.
Author: Achim Gegler
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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