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Essays On Multivariate Modeling In Financial Econometrics
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Book Synopsis Essays on Multivariate Modeling in Financial Econometrics by : Emre Yoldas
Download or read book Essays on Multivariate Modeling in Financial Econometrics written by Emre Yoldas and published by . This book was released on with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main theme of this dissertation is multivariate modeling in financial econometrics. The first chapter uses the fundamental properties of the multivariate distributions of independent random variables to develop a new specification testing methodology for dynamic models. The second chapter generalizes this methodology to tests of distributional assumptions and dynamic specification in multivariate models. In the third chapter we focus on testing and modeling asymmetries in the second moments of multiple equity returns. The methodological advances in nonlinear time series models with non-normal density functions and in density forecasting have emphasized the need for developing dynamic specification tests for the joint hypothesis of i.i.d. ness and density functional form. In Chapter I, we propose a new battery of tests that rely on the fundamental properties of independent random variables with identical distributions and we introduce a graphical device, the autocontour, that helps to visualize the modeling problems. Based on the theoretical probability coverage of the autocontours, we construct a battery of asymptotic t-tests and chi-squared tests, which have standard convergence rates. The tests are very powerful against violations of both hypotheses. They do not require either a transformation of the original data or an assessment of goodness-of-fit à-la Kolmogorov and explicitly account for parameter uncertainty. Monte Carlo simulations show that their finite sample performance is very good even in relatively small samples. We illustrate the usefulness of this methodology within the context of GARCH and ACD models using returns and duration data from the US equity markets.
Book Synopsis Essays on Multivariate Modelling of Financial Markets Using Copula and Sentiment Networks by : Anastasija Tetereva
Download or read book Essays on Multivariate Modelling of Financial Markets Using Copula and Sentiment Networks written by Anastasija Tetereva and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Multivariate dependence structures play an important role in finance. The modelling and accurate prediction of multivariate financial time series is an important component of asset pricing and portfolio management. This doctoral thesis comprises three essays that address the question of multivariate dependencies using high-frequency data and innovative sources of information such as news analytics. These essays make complementary contributions to the field of financial econometrics and can be read independently of each other. The first essay focuses on the improvement of Value at Risk prediction based on highfrequency data. The novel concept of the realized hierarchical Archimedean copula is introduced. It is proposed estimating the structure and the parameters of the hierarchical Archimedean copula using the realized correlation matrix only. This approach allows one to estimate the multivariate distribution of daily returns based on intraday information. Moreover, the proposed estimator does not suffer from the curse of dimensionality. In this essay, the realized hierarchical Archimedean copula is applied to manage the risk of high-dimensional portfolios. The evidence of the superior forecasting power of our approach, compared to a set of existing models, is provided. The second essay investigates the role of news sentiment data in improving forecasts in financial econometrics. The objective of this paper is to answer the question regarding whether the class of stock-price-relevant news is wider than firm-specific announcements. For this purpose, causal links between news sentiments and excess returns are studied by means of an adaptive lasso. It is concluded that unexpected returns in the whole economy can be explained by news originating from the financial and energy sectors. In other words, the news spillover effects are dominating the direct effects of sectoral news. Therefore, including exogenous financial or energy sentim.
Book Synopsis Essays on Financial Econometrics by : Juri Marcucci
Download or read book Essays on Financial Econometrics written by Juri Marcucci and published by . This book was released on 2005 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation contains three self-contained chapters dealing with volatility modeling and forecasting. In the first chapter we compare a set of standard GARCH models with a group of Markov Regime-Switching GARCH (MRS-GARCH) in terms of their ability to forecast the US stock market volatility at horizons that range from one day to one month. The empirical analysis demonstrates that MRS-GARCH models do really outperform all standard GARCH models in forecasting volatility at horizons shorter than one week. In particular, all tests reject the presence of a better model than the MRS-GARCH with normal innovations. However, at forecast horizons longer than one week, standard asymmetric GARCH models tend to be superior. In chapter 2 a new model to analyze the comovements in the volatilities of a portfolio is proposed. The Pure Variance Common Features model is a factor model for the conditional variances of a portfolio of assets, designed to isolate a small number of variance features that drive all assets' volatilities. It decomposes the conditional variance into a short-run idiosyncratic component (a low-order ARCH process) and a long-run component (the variance factors). An empirical example provides evidence that models with very few variance features perform well in capturing the long-run common volatilities of the equity components of the Dow Jones. In the third and last chapter we compare standard univariate models and multivariate factor models in terms of their ability to forecast the realized variances of a group of major international stock exchanges. Our results show that those models adopting equally weighted regional factors outperform all the others. In addition, models that use factors obtained from canonical correlation analysis tend to outperform all the others that employ different multivariate techniques, therefore confirming their predicting power.
Book Synopsis Volatility and Time Series Econometrics by : Tim Bollerslev
Download or read book Volatility and Time Series Econometrics written by Tim Bollerslev and published by OUP Oxford. This book was released on 2010-02-11 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Volatility and Time Series Econometrics by : Mark Watson
Download or read book Volatility and Time Series Econometrics written by Mark Watson and published by Oxford University Press. This book was released on 2010-02-11 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: A volume that celebrates and develops the work of Nobel Laureate Robert Engle, it includes original contributions from some of the world's leading econometricians that further Engle's work in time series economics
Book Synopsis Three Essays in Bayesian Financial Econometrics by : Xin Jin
Download or read book Three Essays in Bayesian Financial Econometrics written by Xin Jin and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nonlinear Economic Dynamics and Financial Modelling by : Roberto Dieci
Download or read book Nonlinear Economic Dynamics and Financial Modelling written by Roberto Dieci and published by Springer. This book was released on 2014-07-26 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book reflects the state of the art on nonlinear economic dynamics, financial market modelling and quantitative finance. It contains eighteen papers with topics ranging from disequilibrium macroeconomics, monetary dynamics, monopoly, financial market and limit order market models with boundedly rational heterogeneous agents to estimation, time series modelling and empirical analysis and from risk management of interest-rate products, futures price volatility and American option pricing with stochastic volatility to evaluation of risk and derivatives of electricity market. The book illustrates some of the most recent research tools in these areas and will be of interest to economists working in economic dynamics and financial market modelling, to mathematicians who are interested in applying complexity theory to economics and finance and to market practitioners and researchers in quantitative finance interested in limit order, futures and electricity market modelling, derivative pricing and risk management.
Book Synopsis Essays on finite mixture models by : Abram van Dijk
Download or read book Essays on finite mixture models written by Abram van Dijk and published by Rozenberg Publishers. This book was released on 2009 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Finite mixture distributions are a weighted average of a finite number of distributions. The latter are usually called the mixture components. The weights are usually described by a multinomial distribution and are sometimes called mixing proportions. The mixture components may be the same type of distributions with di®erent parameter values but they may also be completely different distributions. Therefore, finite mixture distributions are very °exible for modeling data. They are frequently used as a building block within many modern econometric models. The specification of the mixture distribution depends on the modeling problem at hand. In this thesis, we introduce new applications of finite mixtures to deal with several di®erent modeling issues. Each chapter of the thesis focusses on a specific modeling issue. The parameters of some of the resulting models can be estimated using standard techniques but for some of the chapters we need to develop new estimation and inference methods. To illustrate how the methods can be applied, we analyze at least one empirical data set for each approach. These data sets cover a wide range of research fields, such as macroeconomics, marketing, and political science. We show the usefulness of the methods and, in some cases, the improvement over previous methods in the literature.
Book Synopsis Three Essays on the Econometric Analysis of High Frequency Financial Data by : Roel C. A. Oomen
Download or read book Three Essays on the Econometric Analysis of High Frequency Financial Data written by Roel C. A. Oomen and published by . This book was released on 2003 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Essays on High Frequency Financial Econometrics by :
Download or read book Essays on High Frequency Financial Econometrics written by and published by . This book was released on 2015 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: "It has long been demonstrated that continuous-time methods are powerful tools in financial modeling. Yet only in recent years, their counterparts in empirical analysis-high frequency econometrics-began to emerge with the availability of intra-day data and relevant statistical tools. This dissertation contributes to the development of this emerging area in two directions. On the one hand, it develops new econometric tools to identify different types of interdependence structure among asset state processes. Chapter 2 examines the co-movement of asset price and its volatility, known as leverage effect. Different from previous work, this chapter allows price and volatility processes to have both continuous and discontinuous stochastic components that may contribute to the overall leverage effect. The second type is about the interdependence between price process and its jump intensity, known as self-excitation. Chapter 3 extends the definition of self-excitation in jumps accordingly, proposes statistical tests to detect its presence in a discretely observed path at high frequency, and derives the tests' asymptotic properties. On the other hand, Finance theory implies a set of constraints on the dynamics of an option price process and that of its underlying processes. Yet empirical option pricing models may either implicitly ignore some theoretical constraints or impose a possibly misspecified parametric structure on it. Chapter 4 fill this gap, by proposing a statistical procedure that utilizes information from the time series of the underlying processes to test the specification of a given option pricing model. "--Samenvatting auteur.
Book Synopsis Essays in Financial Econometrics by : Dae Hee Jeong
Download or read book Essays in Financial Econometrics written by Dae Hee Jeong and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: I consider continuous time asset pricing models with stochastic differential utility incorporating decision makers' concern with ambiguity on true probability measure. In order to identify and estimate key parameters in the models, I use a novel econometric methodology developed recently by Park (2008) for the statistical inference on continuous time conditional mean models. The methodology only imposes the condition that the pricing error is a continuous martingale to achieve identification, and obtain consistent and asymptotically normal estimates of the unknown parameters. Under a representative agent setting, I empirically evaluate alternative preference specifications including a multiple-prior recursive utility. My empirical findings are summarized as follows: Relative risk aversion is estimated around 1.5-5.5 with ambiguity aversion and 6-14 without ambiguity aversion. Related, the estimated ambiguity aversion is both economically and statistically significant and including the ambiguity aversion clearly lowers relative risk aversion. The elasticity of intertemporal substitution (EIS) is higher than 1, around 1.3-22 with ambiguity aversion, and quite high without ambiguity aversion. The identification of EIS appears to be fairly weak, as observed by many previous authors, though other aspects of my empirical results seem quite robust. Next, I develop an approach to test for martingale in a continuous time framework. The approach yields various test statistics that are consistent against a wide class of nonmartingale semimartingales. A novel aspect of my approach is to use a time change defined by the inverse of the quadratic variation of a semimartingale, which is to be tested for the martingale hypothesis. With the time change, a continuous semimartingale reduces to Brownian motion if and only if it is a continuous martingale. This follows immediately from the celebrated theorem by Dambis, Dubins and Schwarz. For the test of martingale, I may therefore see if the given process becomes Brownian motion after the time change. I use several existing tests for multivariate normality to test whether the time changed process is indeed Brownian motion. I provide asymptotic theories for my test statistics, on the assumption that the sampling interval decreases, as well as the time horizon expands. The stationarity of the underlying process is not assumed, so that my results are applicable also to nonstationary processes. A Monte-Carlo study shows that our tests perform very well for a wide range of realistic alternatives and have superior power than other discrete time tests.
Book Synopsis Essays on Nonparametric Series Estimation with Application to Financial Econometrics by : Meng-Shiuh Chang
Download or read book Essays on Nonparametric Series Estimation with Application to Financial Econometrics written by Meng-Shiuh Chang and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation includes two essays. In the first essay, I proposed an alternative estimator for multivariate densities. This estimator can be characterized as a transformation based estimator. The first stage estimates each marginal density separately. In the second stage, the joint density of estimated marginal cumulative distribution functions (CDF) are approximated by the exponential series estimator. The final estimate is then obtained as the product of the marginal densities and the joint density estimated in the second stage. Extensive Monte Carlo studies show the proposed estimator outperforms kernel estimators in joint density and tail distribution estimation. An illustrative example on estimating the conditional copula density between S & P 500 and FTSE 100 given Hangseng and Nikkei 225 is also discussed. In the second essay, I extended the semiparametric model by Chen and Fan [X. Chen, Y. Fan, Estimation of copula-based semiparametric time series models, Journal of Econometrics 130 (2006) 307-335], and studied a class of univariate copula-based nonparametric stationary Markov models in which the copulas and the marginal distributions are estimated nonparametrically. In particular, I focused on the stationary Markov process of order 1 with continuous state space because it has the beta-mixing property for the analysis of weakly dependent processes. The copula density functions for time series models are approximated by the series estimate on sieve spaces. In this study, a finite dimensional linear space spanned by a sequence of power functions is treated as the sieve space where the estimation space of the copula density function is based. This sieve series estimator can be characterized as the exponential series estimator under mild smoothness conditions. By using the beta-mixing properties, I showed that the copula density function approximated by the exponential series estimator for stationary first-order Markov processes has the same convergence rate as the i.i.d. data. The Monte Carlo simulations show that the proposed estimator outperforms the kernel estimator in the conditional density estimation, except for the Frank copula-based Markov model. In addition, the proposed estimator considerably dominates the kernel estimator when used in the one-step-ahead forecast.
Book Synopsis Financial Mathematics, Volatility and Covariance Modelling by : Julien Chevallier
Download or read book Financial Mathematics, Volatility and Covariance Modelling written by Julien Chevallier and published by Routledge. This book was released on 2019-06-28 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an up-to-date series of advanced chapters on applied financial econometric techniques pertaining the various fields of commodities finance, mathematics & stochastics, international macroeconomics and financial econometrics. Financial Mathematics, Volatility and Covariance Modelling: Volume 2 provides a key repository on the current state of knowledge, the latest debates and recent literature on financial mathematics, volatility and covariance modelling. The first section is devoted to mathematical finance, stochastic modelling and control optimization. Chapters explore the recent financial crisis, the increase of uncertainty and volatility, and propose an alternative approach to deal with these issues. The second section covers financial volatility and covariance modelling and explores proposals for dealing with recent developments in financial econometrics This book will be useful to students and researchers in applied econometrics; academics and students seeking convenient access to an unfamiliar area. It will also be of great interest established researchers seeking a single repository on the current state of knowledge, current debates and relevant literature.
Book Synopsis Essays on Finite Sample Inference and Financial Econometrics by : Yong Bao
Download or read book Essays on Finite Sample Inference and Financial Econometrics written by Yong Bao and published by . This book was released on 2004 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Essays in Nonlinear Time Series Econometrics by : Niels Haldrup
Download or read book Essays in Nonlinear Time Series Econometrics written by Niels Haldrup and published by OUP Oxford. This book was released on 2014-06-26 with total page 393 pages. Available in PDF, EPUB and Kindle. Book excerpt: This edited collection concerns nonlinear economic relations that involve time. It is divided into four broad themes that all reflect the work and methodology of Professor Timo Teräsvirta, one of the leading scholars in the field of nonlinear time series econometrics. The themes are: Testing for linearity and functional form, specification testing and estimation of nonlinear time series models in the form of smooth transition models, model selection and econometric methodology, and finally applications within the area of financial econometrics. All these research fields include contributions that represent state of the art in econometrics such as testing for neglected nonlinearity in neural network models, time-varying GARCH and smooth transition models, STAR models and common factors in volatility modeling, semi-automatic general to specific model selection for nonlinear dynamic models, high-dimensional data analysis for parametric and semi-parametric regression models with dependent data, commodity price modeling, financial analysts earnings forecasts based on asymmetric loss function, local Gaussian correlation and dependence for asymmetric return dependence, and the use of bootstrap aggregation to improve forecast accuracy. Each chapter represents original scholarly work, and reflects the intellectual impact that Timo Teräsvirta has had and will continue to have, on the profession.
Book Synopsis Modeling Financial Time Series with S-PLUS® by : Eric Zivot
Download or read book Modeling Financial Time Series with S-PLUS® written by Eric Zivot and published by Springer Science & Business Media. This book was released on 2007-10-10 with total page 998 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book represents an integration of theory, methods, and examples using the S-PLUS statistical modeling language and the S+FinMetrics module to facilitate the practice of financial econometrics. It is the first book to show the power of S-PLUS for the analysis of time series data. It is written for researchers and practitioners in the finance industry, academic researchers in economics and finance, and advanced MBA and graduate students in economics and finance. Readers are assumed to have a basic knowledge of S-PLUS and a solid grounding in basic statistics and time series concepts. This edition covers S+FinMetrics 2.0 and includes new chapters.
Book Synopsis Essays on Multivariate Volatility and Dependence Models for Financial Time Series by : Diaa Noureldin
Download or read book Essays on Multivariate Volatility and Dependence Models for Financial Time Series written by Diaa Noureldin and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
