Search found 16 matches

by ayca79
Fri Aug 19, 2016 1:08 pm
Forum: Estimation
Topic: Codes for Capm dbekk
Replies: 0
Views: 2299

Codes for Capm dbekk

Hello, I need to write m-garch capm codes through dbekk model. My model is y = mu + res -> y1 = y2*H(1,2)/H(2,2) + mu + res-->> where -->y1= portfolio return, -->y2= market return, -->h(1,2)= conditional covariance between market and portfolio, -->h(2,2) = conditional variance of market portfolio ' ...
by ayca79
Sat Aug 13, 2016 3:43 pm
Forum: Estimation
Topic: Hello I have a question regardinf the variables in m garch bekk codes and the "mu"
Replies: 0
Views: 2281

Hello I have a question regardinf the variables in m garch bekk codes and the "mu"

Hello, I have a question regarding the mu in those bekk codes. It is used for calculating the errors of the series. The series do not display White noise. I want to estimate the conditional covariances in the out of sample with the parameters in the in-sample. How can I do that? My two series are au...
by ayca79
Sun Jul 24, 2016 1:32 pm
Forum: Estimation
Topic: mUltivariate GARCH capm
Replies: 0
Views: 2843

mUltivariate GARCH capm

Dear colleagues, I need to calculate conditinal betas of several portfolios. For this, I need m-garch codes but the mean equation is rt =λtcov(Rmt, Rit│ Ψt-1) + εt (1) cov(Rmt, Rit│ Ψt-1) =ht==> conditional covariance between market returns and portfolio returns. The conditional covariances are calc...
by ayca79
Tue Jun 30, 2015 2:31 pm
Forum: Estimation
Topic: Rolling mgarch
Replies: 1
Views: 3600

Rolling mgarch

Hello, Is it possible to run mgarch dvech mgarch bekk, mgarch ccc and mgarch dcc with one year Windows ? Rolling happens on one day intervals. Garch procedures are recursive in nature. But for my work I may need an additional Rolling feature. I have got data of 10 years. If I calculate conditional c...
by ayca79
Tue Jun 16, 2015 7:58 am
Forum: Estimation
Topic: regarding the results that mgarch dcc produces
Replies: 6
Views: 6479

Re: regarding the results that mgarch dcc produces

Thank you Trubador,
by ayca79
Mon Jun 15, 2015 10:24 am
Forum: Estimation
Topic: regarding the results that mgarch dcc produces
Replies: 6
Views: 6479

Re: regarding the results that mgarch dcc produces

I actually estimate the covariances indirectly through correlations values. Then I use them to forecast returns. I estimate the difference between the realized and estimated returns for two methods. There I use DM test to estimate whether this difference is significant. So for me of course, not the ...
by ayca79
Mon Jun 15, 2015 3:31 am
Forum: Estimation
Topic: regarding the results that mgarch dcc produces
Replies: 6
Views: 6479

Re: regarding the results that mgarch dcc produces

Hello, my workfile and program file are attached. My variables are ehat and ehatm. Those are residual series of autoregressive processes of two return series. The first correlation value is not produced. I will apply diebold mariano test between the results of mgarch ccc and mgarch dcc. However, the...
by ayca79
Sat Jun 13, 2015 12:43 am
Forum: Estimation
Topic: regarding the results that mgarch dcc produces
Replies: 6
Views: 6479

regarding the results that mgarch dcc produces

Hello, Below are the codes for my unstructured data I have got 2668 observations but the codes produce 2667 correlations. The first value is given as "NA". If I only write "s1 1 2668" then it does not calculate the logl. So the best result I get comes with the codes below. I woul...
by ayca79
Wed May 27, 2015 1:28 am
Forum: Estimation
Topic: Asymmetric mgarch ccc, dbekk codes
Replies: 0
Views: 2049

Asymmetric mgarch ccc, dbekk codes

Hello,
Are there eviews codes regarding the asymmetric mgarch ccc or mgarch diagonal bekk ? I could not model GARCH (1,1) or garch(1,2) for part of my data. I think that asymmetric models might work.

Thank you,
by ayca79
Fri May 15, 2015 6:11 am
Forum: Estimation
Topic: Regarding dcc coding
Replies: 1
Views: 3096

Regarding dcc coding

Hello, I have a question regarding mgarch dcc coding. Below is the bivariate mgarch dcc code. There are 2 return series as variables. However, when I also put my return series as variables the garch model residual test indicates autocorrelation between residuals of garch models. So, I built an AR mo...
by ayca79
Wed May 06, 2015 7:09 am
Forum: Estimation
Topic: conditional covariance with mgarch dcc
Replies: 3
Views: 6386

Re: conditional covariance with mgarch dcc

Thank you. I took squareroots of garch series when multiplying the conditioanl covariances. But I wrote in the post without the square roots by mistake. So I did it right then. Thank you.
by ayca79
Fri Apr 24, 2015 2:04 am
Forum: Estimation
Topic: conditional covariance with mgarch dcc
Replies: 3
Views: 6386

conditional covariance with mgarch dcc

Hello, I need to find conditional covariances between two variables. My method is mgarch dcc. When I run mgarch dcc codes, it produces garch(1), garch(2) and rho. I calculate covariance as covariance=rho*(garch(1)*(garch(2)) as the codes don't produce covariances, it must be the way to estimate cova...
by ayca79
Fri Apr 17, 2015 4:34 am
Forum: Add-in Support
Topic: DMtest - Diebold-Mariano Forecast Evaluation Test
Replies: 32
Views: 77623

Re: DMtest - Diebold-Mariano Forecast Evaluation Test

Hello, I have a question about the equation of this add in. What kind of equation should it be? I think that it should not be a time series regression equation because DM test calculates whether the difference is significant between two series which are the series of deviation between the realized a...
by ayca79
Mon Mar 09, 2015 6:51 am
Forum: Estimation
Topic: Regarding the coding of dvech
Replies: 2
Views: 3270

Re: Regarding the coding of dvech

thank you very much.
by ayca79
Mon Mar 09, 2015 3:41 am
Forum: Estimation
Topic: Regarding the coding of dvech
Replies: 2
Views: 3270

Regarding the coding of dvech

Hello, I am new to eviews. I have codes for dvech in eviews. However, there is one point I want to make sure. Below are my codes: But as I define r1 and r2, should they be the residuals of the main series' equation or the main series itself? On the paper of Jelena Milovic, it says that the variables...

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