Essays On Financial Volatility Forecasting
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Essays On Financial Volatility Forecasting
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Author : Katina Tsakou
language : en
Publisher:
Release Date : 2016
Essays On Financial Volatility Forecasting written by Katina Tsakou and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Essays On Volatility Forecasting
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Author : Dimos S. Kambouroudis
language : en
Publisher:
Release Date : 2012
Essays On Volatility Forecasting written by Dimos S. Kambouroudis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with Accounting and price fluctuations categories.
Stock market volatility has been an important subject in the finance literature for which now an enormous body of research exists. Volatility modelling and forecasting have been in the epicentre of this line of research and although more than a few models have been proposed and key parameters on improving volatility forecasts have been considered, finance research has still to reach a consensus on this topic. This thesis enters the ongoing debate by carrying out empirical investigations by comparing models from the current pool of models as well as exploring and proposing the use of further key parameters in improving the accuracy of volatility modelling and forecasting. The importance of accurately forecasting volatility is paramount for the functioning of the economy and everyone involved in finance activities. For governments, the banking system, institutional and individual investors, researchers and academics, knowledge, understanding and the ability to forecast and proxy volatility accurately is a determining factor for making sound economic decisions. Four are the main contributions of this thesis. First, the findings of a volatility forecasting model comparison reveal that the GARCH genre of models are superior compared to the more 'simple' models and models preferred by practitioners. Second, with the use of backward recursion forecasts we identify the appropriate in-sample length for producing accurate volatility forecasts, a parameter considered for the first time in the finance literature. Third, further model comparisons are conducted within a Value-at-Risk setting between the RiskMetrics model preferred by practitioners, and the more complex GARCH type models, arriving to the conclusion that GARCH type models are dominant. Finally, two further parameters, the Volatility Index (VIX) and Trading Volume, are considered and their contribution is assessed in the modelling and forecasting process of a selection of GARCH type models. We discover that although accuracy is improved upon, GARCH type forecasts are still superior.
Essays On Financial Volatility And Correlation
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Author : George Christodoulakis
language : en
Publisher:
Release Date : 2001
Essays On Financial Volatility And Correlation written by George Christodoulakis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Volatility And Time Series Econometrics
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Author : Tim Bollerslev
language : en
Publisher: OUP Oxford
Release Date : 2010-02-11
Volatility And Time Series Econometrics written by Tim Bollerslev and has been published by OUP Oxford this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-02-11 with Business & Economics categories.
Robert Engle received the Nobel Prize for Economics in 2003 for his work in time series econometrics. This book contains 16 original research contributions by some the leading academic researchers in the fields of time series econometrics, forecasting, volatility modelling, financial econometrics and urban economics, along with historical perspectives related to field of time series econometrics more generally. Engle's Nobel Prize citation focuses on his path-breaking work on autoregressive conditional heteroskedasticity (ARCH) and the profound effect that this work has had on the field of financial econometrics. Several of the chapters focus on conditional heteroskedasticity, and develop the ideas of Engle's Nobel Prize winning work. Engle's work has had its most profound effect on the modelling of financial variables and several of the chapters use newly developed time series methods to study the behavior of financial variables. Each of the 16 chapters may be read in isolation, but they all importantly build on and relate to the seminal work by Nobel Laureate Robert F. Engle.
Essays In Finance
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Author : Sebastian Vicedom
language : en
Publisher:
Release Date : 2016
Essays In Finance written by Sebastian Vicedom and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.
Essays On Financial Return And Volatility Modeling
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Author : Jing Wu (Ph. D.)
language : en
Publisher:
Release Date : 2012
Essays On Financial Return And Volatility Modeling written by Jing Wu (Ph. D.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
My dissertation consists of three essays focusing on modeling financial asset return and volatility. The first essay proposes a threshold GARCH model to describe the regimeswitching in volatility dynamics of financial asset returns. In the threshold model the switching of regimes is triggered by an observable threshold variable, while volatility follows a GARCH process within each regime. This model can be viewed as a special case of the random coefficient GARCH model. We establish theoretical conditions, which ensure that the return process in the threshold model is strictly stationary, as well as conditions for the existence of finite variance and fourth moment. A simulation study is further conducted to examine the finite sample properties of the maximum likelihood estimator. The second essay extends our study of the threshold GARCH model to an empirical application. The empirical results support the use of the threshold variable to identify the regime shifts in the volatility process. Especially when VIX is used as the threshold, we are able to separate the clustering of volatile periods corresponding to various financial crises. According to 5 common measures on forecasting evaluation, the threshold GARCH model provides better volatility forecasts for stocks as well as currency exchange rates. The third essay examines the effect of time structure on the estimation performance of independent component analysis (ICA) models and provides guidance in applying the ICA model to time series data. We compare the performance of the basic ICA model to the time series ICA model in which the cross-autocovariances are used as a measure to achieve independence. We conduct a simulation study to evaluate the time series ICA model under different time structure assumptions about the underlying components that generate financial time series. Moreover, the empirical results support the use of the time series ICA model.
Essays On Causality And Volatility In Econometrics With Financial Applications
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Author : Hui Jun Zhang
language : en
Publisher:
Release Date : 2013
Essays On Causality And Volatility In Econometrics With Financial Applications written by Hui Jun Zhang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.
"This thesis makes contributions to the statistical analysis of causality and volatility in econometrics. It consists of five essays, theoretical and empirical. In the first one, we study how to characterize and measure multi-horizon second-order causality. The second and third essays propose linear estimation methods for univariate and multivariate weak GARCH models. In the fourth essay, we use multi-horizon causality measures to study the causal relationships between commodity prices and exchange rates with high-frequency data. In the fifth essay, we evaluate the historical evolution of volatility forecast skill.Given the increasingly important role of volatility forecasting in financial studies, a number of authors have proposed to extend the notion of Granger causality to study the dynamic cobehavior of volatilities. In the first essay, we propose a general theory of second-order causality between random vectors at different horizons, allowing for the presence of auxiliary variables, in terms of the predictability of conditional variance. We establish various properties of the causality structures so defined. Furthermore, we propose nonparametric and parametric measures of second-order causality at a given horizon. We suggest a simulation-based method to evaluate the measures in the context of stationary VAR-MGARCH. The asymptotic validity of bootstrap confidence intervals is demonstrated. Finally, we apply the proposed measures of second-order causality to study volatility spillover and contagion across financial markets in the U.S., the U.K. and Japan, for the period of 2000-2010.It is well known that the quasi-maximum likelihood (QML) estimator is consistent and asymptotically normal for (semi-)strong GARCH models. However, when estimating a weak GARCH model, the QML estimator can be inconsistent due to the misspecification of conditional variance. The nonlinear least squares (NLS) estimation is consistent and asymptotically normal for weak GARCH models, but requires a complicated nonlinear optimization. In the second essay, we suggest a linear estimation method, which is shown to be consistent and asymptotically normal for weak GARCH models. Simulation results for weak GARCH models indicate that, the linear estimation method outperforms both QML and NLS for parameter estimation, and is comparable to the NLS, and better than QML for out-of-sample forecasts.Similar issues show up when QML and NLS are used for weak multivariate GARCH (MGARCH) models. In the third essay, we propose a linear estimation method for weak MGARCH models. The asymptotic properties of this linear estimator are established. Simulations for weak MGARCH models show that our linear estimation method outperforms both QML and NLS for the parameter estimation, and the three methods perform similarly in out-of-sample forecasting experiments. Most importantly, the proposed linear estimation is much less computationally complex than QML and NLS. In the fourth essay, we study the causal relationship between commodity prices and exchange rates. Existing studies using quarterly data and noncausality tests only at horizon 1 do not indicate a clear direction of causality from commodity prices to exchange rates. In contrast, by considering multi-horizon causality measures using the high-frequency data (daily and 5-minute) from three typical commodity economies, we find that causality running from commodity prices to exchange rates is stronger than that in the opposite direction up to multiple horizons, after accounting for "dollar effects".In the fifth essay, we apply the concept of forecast skill to evaluate the historical evolution of volatility forecasting, using the data from S&P 500 composite index over the period of 1983-2009. We find that models of conditional volatility do yield improvements in forecasting, but the historical evolution of volatility forecast skill does not exhibit a clear upward trend." --
Volatility And Time Series Econometrics Essays In Honor Of Robert Engle
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Author : Tim Bollerslev
language : en
Publisher: OUP Oxford
Release Date : 2010-02-11
Volatility And Time Series Econometrics Essays In Honor Of Robert Engle written by Tim Bollerslev and has been published by OUP Oxford this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-02-11 with Business & Economics categories.
Robert Engle received the Nobel Prize for Economics in 2003 for his work in time series econometrics. This book contains 16 original research contributions by some the leading academic researchers in the fields of time series econometrics, forecasting, volatility modelling, financial econometrics and urban economics, along with historical perspectives related to field of time series econometrics more generally.Engle's Nobel Prize citation focuses on his path-breaking work on autoregressive conditional heteroskedasticity (ARCH) and the profound effect that this work has had on the field of financial econometrics. Several of the chapters focus on conditional heteroskedasticity, and develop the ideas of Engle's Nobel Prize winning work. Engle's work has had its most profound effect on the modelling of financial variables and several of the chapters use newly developed time series methods to study thebehavior of financial variables. Each of the 16 chapters may be read in isolation, but they all importantly build on and relate to the seminal work by Nobel Laureate Robert F. Engle.
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Author :
language : en
Publisher:
Release Date : 1976
written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with categories.
Forecasting Volatility In The Financial Markets
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Author : Stephen Satchell
language : en
Publisher: Elsevier
Release Date : 2011-02-24
Forecasting Volatility In The Financial Markets written by Stephen Satchell and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-02-24 with Business & Economics categories.
This new edition of Forecasting Volatility in the Financial Markets assumes that the reader has a firm grounding in the key principles and methods of understanding volatility measurement and builds on that knowledge to detail cutting-edge modelling and forecasting techniques. It provides a survey of ways to measure risk and define the different models of volatility and return. Editors John Knight and Stephen Satchell have brought together an impressive array of contributors who present research from their area of specialization related to volatility forecasting. Readers with an understanding of volatility measures and risk management strategies will benefit from this collection of up-to-date chapters on the latest techniques in forecasting volatility. Chapters new to this third edition: * What good is a volatility model? Engle and Patton * Applications for portfolio variety Dan diBartolomeo * A comparison of the properties of realized variance for the FTSE 100 and FTSE 250 equity indices Rob Cornish * Volatility modeling and forecasting in finance Xiao and Aydemir * An investigation of the relative performance of GARCH models versus simple rules in forecasting volatility Thomas A. Silvey * Leading thinkers present newest research on volatility forecasting *International authors cover a broad array of subjects related to volatility forecasting *Assumes basic knowledge of volatility, financial mathematics, and modelling