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Extreme Asymmetric Volatility

Extreme Asymmetric Volatility
Author: Sofiane Aboura
Publisher:
Total Pages: 43
Release: 2015
Genre:
ISBN:

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Asymmetric volatility in equity markets has been widely documented in finance (Bekaert and Wu (2000)). We study asymmetric volatility for daily Samp;P 500 index returns and VIX index changes, thereby examining the relation between extreme changes in risk-neutral volatility expectations, i.e. market stress, and aggregate asset prices. To this aim, we model market returns, implied VIX market volatility and volatility of volatility, showing that the latter is asymmetric in that past positive volatility shocks drive positive shocks to volatility of volatility. Our main result documents the existence of a significant extreme asymmetric volatility effect as we find contemporaneous volatility-return tail dependence for crashes but not for booms. We then outline aggregate market price implications of extreme asymmetric volatility, indicating that under volatility feedback a one-in-a-hundred trading day innovation to average VIX implied volatility, for example, relates to an expected market drop of more than 4 percent.


Extreme Asymmetric Volatility, Leverage, Feedback and Asset Prices

Extreme Asymmetric Volatility, Leverage, Feedback and Asset Prices
Author: Sofiane Aboura
Publisher:
Total Pages: 62
Release: 2015
Genre:
ISBN:

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Asymmetric volatility in equity markets has been widely documented in finance, where two competing explanations, as considered in Bekaert and Wu (2000), are the financial leverage and the volatility feedback hypothesis. We explicitly test for the role of both hypotheses in explaining extreme daily U.S. equity market movements during the period January 1990 to September 2008. To this aim, we examine asymmetric volatility based on a novel model of market returns, implied market volatility and volatility of volatility. We then test for extreme asymmetry and the distinct predictions of both hypotheses. Our results document significant extreme asymmetric volatility. This effect is contemporaneous, consistent with both hypotheses, and it is important for large market declines. We further derive aggregate asset pricing implications under extreme volatility feedback. Given our results, asymmetric volatility, which includes the effect of volatility feedback at extreme levels, is shown to play an important role in explaining substantial equity market declines.


A Behavioral Explanation for the Negative Asymmetric Return-Volatility Relation

A Behavioral Explanation for the Negative Asymmetric Return-Volatility Relation
Author: Ann Marie Hibbert
Publisher:
Total Pages: 30
Release: 2019
Genre:
ISBN:

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We examine the short-term dynamic relation between the S&P 500 (Nasdaq 100) index return and changes in implied volatility at both the daily and intraday level. Neither the leverage hypothesis nor the volatility feedback hypothesis adequately explains the results. Alternatively, we propose that the behavior of traders (from the representativeness, affect, and extrapolation bias concepts of behavioral finance) is consistent with our empirical results of a strong daily and intraday negative return-implied volatility relation. Moreover, both the presence and magnitude of the negative relation and the asymmetry between return and implied volatility are most closely associated with extreme changes in the index returns. We also show that the strength of the relation is consistent with the implied volatility skew.


Clarifications on the Asymmetric Volatility Effect and Foreign Investors' Destabilizing Influence

Clarifications on the Asymmetric Volatility Effect and Foreign Investors' Destabilizing Influence
Author: Robert Bruckner
Publisher:
Total Pages: 30
Release: 2007
Genre:
ISBN:

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In this paper, the relation of asymmetric conditional volatility to market agents' information perception ability is built and positively tested. Liquidity dry-ups during extreme market conditions, that, due to investors' risk aversion, are more pronounced during negative than positive news result in asymmetric volatility. The well known volatility feedback effect assures that the short term effect of liquidity dry-ups troubles a financial market for an extended period. An explanation for the perceived liquidity dry-ups is found in market microstructure theory; adverse information cost. The propositions are then tested using a well documented phenomenon; quot;Home Biasquot;. The positive relation of relative foreign investors' exposure to the German DAX to volatility levels in general and the asymmetry specifically is documented with high statistical significance.The results are far reaching; on the one hand trading mechanism can be better understood. On the other hand, capital flow regulations are illuminated.


The Smart Money Method

The Smart Money Method
Author: Stephen Clapham
Publisher: Harriman House Limited
Total Pages: 226
Release: 2020-11-24
Genre: Business & Economics
ISBN: 0857197037

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In The Smart Money Method, the stock-picking techniques used by top industry professionals are laid bare for investors. This is the inside track on how top hedge funds pick stocks and build portfolios to make outsize returns. Stephen Clapham is a retired hedge fund partner who now trains stock analysts at some of the world’s largest and most successful institutional investors. He explains step-by-step his research process for picking stocks and testing their market-beating potential. His methodology provides the tools and techniques to research new stock ideas, as well as maintain and eventually sell an investment. From testing your thesis and making investment decisions, to managing your portfolio and deciding when to buy and sell, The Smart Money Method covers everything you need to know to avoid common pitfalls and invest with confidence. Unique insight is presented in several specific areas, including how to: • Find stock ideas • Assess the quality of any business • Judge management’s ability • Identify shady accounting and avoid dying companies • Value any business to find bargain shares • Navigate the consequences of COVID-19 And throughout, there are real-life investing examples and war stories from a 25-year career in stock markets. The message is clear – you can beat the market. To do so, you need to learn and apply the insider secrets contained within this book.


Nonparametric Econometric Methods and Application

Nonparametric Econometric Methods and Application
Author: Thanasis Stengos
Publisher: MDPI
Total Pages: 224
Release: 2019-05-20
Genre: Business & Economics
ISBN: 3038979643

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The present Special Issue collects a number of new contributions both at the theoretical level and in terms of applications in the areas of nonparametric and semiparametric econometric methods. In particular, this collection of papers that cover areas such as developments in local smoothing techniques, splines, series estimators, and wavelets will add to the existing rich literature on these subjects and enhance our ability to use data to test economic hypotheses in a variety of fields, such as financial economics, microeconomics, macroeconomics, labor economics, and economic growth, to name a few.


Beyond Greed and Fear

Beyond Greed and Fear
Author: Hersh Shefrin
Publisher:
Total Pages: 410
Release: 2002
Genre: Business & Economics
ISBN: 9780195161212

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Even the best Wall Street investors make mistakes. No matter how savvy or experienced, all financial practitioners eventually let bias, overconfidence, and emotion cloud their judgement and misguide their actions. Yet most financial decision-making models fail to factor in these fundamentals of human nature. In Beyond Greed and Fear, the most authoritative guide to what really influences the decision-making process, Hersh Shefrin uses the latest psychological research to help us understand the human behavior that guides stock selection, financial services, and corporate financial strategy. Shefrin argues that financial practitioners must acknowledge and understand behavioral finance--the application of psychology to financial behavior--in order to avoid many of the investment pitfalls caused by human error. Through colorful, often humorous real-world examples, Shefrin points out the common but costly mistakes that money managers, security analysts, financial planners, investment bankers, and corporate leaders make, so that readers gain valuable insights into their own financial decisions and those of their employees, asset managers, and advisors. According to Shefrin, the financial community ignores the psychology of investing at its own peril. Beyond Greed and Fear illuminates behavioral finance for today's investor. It will help practitioners to recognize--and avoid--bias and errors in their decisions, and to modify and improve their overall investment strategies.


Volatility and Time Series Econometrics

Volatility and Time Series Econometrics
Author: Mark Watson
Publisher: Oxford University Press
Total Pages: 432
Release: 2010-02-11
Genre: Business & Economics
ISBN: 0199549494

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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


Handbook of Volatility Models and Their Applications

Handbook of Volatility Models and Their Applications
Author: Luc Bauwens
Publisher: John Wiley & Sons
Total Pages: 566
Release: 2012-03-22
Genre: Business & Economics
ISBN: 1118272056

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A complete guide to the theory and practice of volatility models in financial engineering Volatility has become a hot topic in this era of instant communications, spawning a great deal of research in empirical finance and time series econometrics. Providing an overview of the most recent advances, Handbook of Volatility Models and Their Applications explores key concepts and topics essential for modeling the volatility of financial time series, both univariate and multivariate, parametric and non-parametric, high-frequency and low-frequency. Featuring contributions from international experts in the field, the book features numerous examples and applications from real-world projects and cutting-edge research, showing step by step how to use various methods accurately and efficiently when assessing volatility rates. Following a comprehensive introduction to the topic, readers are provided with three distinct sections that unify the statistical and practical aspects of volatility: Autoregressive Conditional Heteroskedasticity and Stochastic Volatility presents ARCH and stochastic volatility models, with a focus on recent research topics including mean, volatility, and skewness spillovers in equity markets Other Models and Methods presents alternative approaches, such as multiplicative error models, nonparametric and semi-parametric models, and copula-based models of (co)volatilities Realized Volatility explores issues of the measurement of volatility by realized variances and covariances, guiding readers on how to successfully model and forecast these measures Handbook of Volatility Models and Their Applications is an essential reference for academics and practitioners in finance, business, and econometrics who work with volatility models in their everyday work. The book also serves as a supplement for courses on risk management and volatility at the upper-undergraduate and graduate levels.