نتایج جستجو برای: برآورد garch

تعداد نتایج: 37111  

2009
Tetsuya Takaishi

We perform Markov chain Monte Carlo simulations for a Bayesian inference of the GJR-GARCH model which is one of asymmetric GARCH models. The adaptive construction scheme is used for the construction of the proposal density in the Metropolis-Hastings algorithm and the parameters of the proposal density are determined adaptively by using the data sampled by the Markov chain Monte Carlo simulation...

2010
Bei Chen

Wepropose a novel, simple, efficient and distribution-free re-sampling technique for developing prediction intervals for returns and volatilities following ARCH/GARCH models. In particular, our key idea is to employ a Box-Jenkins linear representation of an ARCH/GARCH equation and then to adapt a sieve bootstrap procedure to the non-linear GARCH framework. Our simulation studies indicate that t...

Journal: :Economic Research-Ekonomska Istraživanja 2010

یکی از ویژگی­های بازار گاز طبیعی، نوسانات زیاد قیمت است که سبب ایجاد ریسک قیمتی می‌شود که باید با استفاده از ابزارهای مالی مناسب، مدیریت و پوشش داده شود. در این راستا هدف این مقاله برآورد نرخ بهینه پوشش ریسک است. برای این منظور از آمار و اطلاعات ماهانه قراردادهای آتی‌های یک تا چهار ماهه بورس طی سال‌های 2016-2000 استفاده شده است. نرخ‌های پوششی به وسیله مدل‌های OLS, VECM-GARCH و  BEKK-GARCH برآور...

2005
ANDERS ERIKSSON

We present a general framework for a GARCH (1,1) type of process with innovations using a probability law of the mean-variance mixing type. We call the process the mean variance mixing GARCH (1,1) or MVM GARCH (1,1). One implication of this particular specification is a GARCH process with skewed innovations and constant mean dynamics. This is achieved without using a location parameter to compe...

2013
Carol Alexander Emese Lazar Silvia Stanescu

a r t i c l e i n f o JEL classification: C53 G17 Keywords: GARCH Higher conditional moments Approximate predictive distributions Value-at-Risk S&P 500 Treasury bill rate Euro–US dollar exchange rate It is widely accepted that some of the most accurate Value-at-Risk (VaR) estimates are based on an appropriately specified GARCH process. But when the forecast horizon is greater than the frequency...

Journal: :Computational Statistics & Data Analysis 2014
Gian Piero Aielli Massimiliano Caporin

It is well-known that the estimated GARCH dynamics exhibit common patterns. Starting from this fact we extend the Dynamic Conditional Correlation (DCC) model by allowing for a clustering structure of the univariate GARCH parameters. The model can be estimated in two steps, the first devoted to the clustering structure, and the second focusing on correlation parameters. Differently from the trad...

2012
Vesna Bucevska

Background: In light of the latest global financial crisis and the ongoing sovereign debt crisis, accurate measuring of market losses has become a very current issue. One of the most popular risk measures is Value-at-Risk (VaR). Objectives: Our paper has two main purposes. The first is to test the relative performance of selected GARCH-type models in terms of their ability of delivering volatil...

Journal: :Expert Syst. Appl. 2015
Werner Kristjanpoller Marcel C. Minutolo

One of the most used methods to forecast price volatility is the generalized autoregressive conditional heteroskedasticity (GARCH) model. Nonetheless, the errors in prediction using this approach are often quite high. Hence, continued research is conducted to improve forecasting models employing a variety of techniques. In this paper, we extend the field of expert systems, forecasting, and mode...

2015
Christian Contino Richard H. Gerlach

A Skewed Student-t Realised DCC copula model using Realised Volatility GARCH marginal functions is developed within a Bayesian framework for the purpose of forecasting portfolio Value at Risk and Conditional Value at Risk. The use of copulas is implemented so that the marginal distributions can be separated from the dependence structure to produce tail forecasts. This is compared to using tradi...

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