DCCGARCH11
Moderators: EViews Gareth, EViews Moderator, EViews Esther

 Posts: 4
 Joined: Thu May 14, 2015 2:02 am
Re: DCCGARCH11
Hi trubador. I have two series of interest rate and exchange rate, and would like to use dccgarch11 addin to know the volatility spillovers between interest rate and exchange rate, and the dynamic correlation coefficients of them. Can you show me how to put in the four empty boxes, they are “return series”, “exogenous variables in the mean equation”, “number of AR lags to be used in mean equations”, and “exogenous variables in the variance equation”. Thanks much.

 Posts: 3
 Joined: Tue May 19, 2015 12:31 am
Re: DCCGARCH11
How to use this addin to calculate the covariance matrix of errors?
Re: DCCGARCH11
George1993 wrote:How to use this addin to calculate the covariance matrix of errors?
You can generate the covariance series by exploiting their statistical relationship to variance and correlation series.
Re: DCCGARCH11
shuangqing wrote:Hi trubador. I have two series of interest rate and exchange rate, and would like to use dccgarch11 addin to know the volatility spillovers between interest rate and exchange rate, and the dynamic correlation coefficients of them. Can you show me how to put in the four empty boxes, they are “return series”, “exogenous variables in the mean equation”, “number of AR lags to be used in mean equations”, and “exogenous variables in the variance equation”. Thanks much.
Have you seen the documentation that comes with the addin?
Re: DCCGARCH11
Hi Trubador, I am trying to find out the DCC for the tourism demand for singapore, south korea and thailand from Indonesia. However, my estimates from the DCCGARCH(1,1) are not making sense. I get a single result instead of a timevarying correlation coefficient.Am i estimating it correctly using the add in?
For the mean eqn; I added 11 dummy monthly variables and AR(2) as encouraged by past literature.
I have attached the workfile too!Pls assist!Thanks!
For the mean eqn; I added 11 dummy monthly variables and AR(2) as encouraged by past literature.
I have attached the workfile too!Pls assist!Thanks!
 Attachments

 indonproj.wf1
 (82.5 KiB) Downloaded 232 times
Re: DCCGARCH11
alexlooyc wrote:Hi Trubador, I am trying to find out the DCC for the tourism demand for singapore, south korea and thailand from Indonesia. However, my estimates from the DCCGARCH(1,1) are not making sense. I get a single result instead of a timevarying correlation coefficient.Am i estimating it correctly using the add in?
For the mean eqn; I added 11 dummy monthly variables and AR(2) as encouraged by past literature.
I have attached the workfile too!Pls assist!Thanks!
The output (i.e. dccout01) clearly indicates that the optimization was not successful. If you carefully examine your univariate GARCH estimates, you should see that the GARCH effects are very weak.
Please read the previous posts in this thread. We have had similar discussions before.

 Posts: 4
 Joined: Thu May 14, 2015 2:02 am
Re: DCCGARCH11
trubador wrote:shuangqing wrote:Hi trubador. I have two series of interest rate and exchange rate, and would like to use dccgarch11 addin to know the volatility spillovers between interest rate and exchange rate, and the dynamic correlation coefficients of them. Can you show me how to put in the four empty boxes, they are “return series”, “exogenous variables in the mean equation”, “number of AR lags to be used in mean equations”, and “exogenous variables in the variance equation”. Thanks much.
Have you seen the documentation that comes with the addin?
Now I have got the documentation,and settled the problem. Think you, trubador.
Re: DCCGARCH11
Hi Trubador,
I have one question. I am using two time series in the addin.
One of the two is normally distributed, the other is not (given by JarqueBera)
Do you suggest using Normal or T_Stud distribution for this specific case? Thank you
I have one question. I am using two time series in the addin.
One of the two is normally distributed, the other is not (given by JarqueBera)
Do you suggest using Normal or T_Stud distribution for this specific case? Thank you
Re: DCCGARCH11
Ivan10 wrote:Hi Trubador,
I have one question. I am using two time series in the addin.
One of the two is normally distributed, the other is not (given by JarqueBera)
Do you suggest using Normal or T_Stud distribution for this specific case? Thank you
There is nothing specific here. These distributions are fit to residuals, not to the series. So, you can estimate the model with the assumption of normal distribution and then check the (standardized) residuals to verify this. You can also test alternative empirical distributions to identify the best fit.

 Posts: 2
 Joined: Sun May 31, 2015 12:59 am
Re: DCCGARCH11
Dear trubador:
I'm trying to use dcc addin to perform my reaserch ,but I theta1 theta2 can't optimize, but I don't know why ?
I have check stationary and time trend.
I'm trying to use dcc addin to perform my reaserch ,but I theta1 theta2 can't optimize, but I don't know why ?
I have check stationary and time trend.
 Attachments

 比特幣.wf1
 (100.84 KiB) Downloaded 178 times
Re: DCCGARCH11
markbaseball wrote:Dear trubador:
I'm trying to use dcc addin to perform my reaserch ,but I theta1 theta2 can't optimize, but I don't know why ?
I have check stationary and time trend.
Have you read the previous posts? For instance:
viewtopic.php?f=23&t=9677&start=15#p36929
viewtopic.php?f=23&t=9677&start=45#p42744
viewtopic.php?f=23&t=9677&start=45#p42822

 Posts: 2
 Joined: Sun May 31, 2015 12:59 am
Re: DCCGARCH11
I have read previous post .
if I don't put any exogeonus in the model, then I can get the right theta1 and theta2.
but if I put exogenous variable,I still can't get the right theta1 and theata 2
if I don't put any exogeonus in the model, then I can get the right theta1 and theta2.
but if I put exogenous variable,I still can't get the right theta1 and theata 2
Re: DCCGARCH11
trubador wrote:1) Since this is a twostep model, you should check the first step (i.e. estimation of univariate GARCH models) to see if everything is OK. Try alternative GARCH models.
2) Model may become illdefined or inconsistent after including an exogenous variable or an AR term. Try dropping them or find better RHS variables.
3) Starting values of coefficients may be too far from an optimal solution. Try different initial parameter values (i.e. theta vector).
4) Correlation targeting may be too restrictive. Try unchecking this option.
5) Sample period may not be appropriate to carry out such an analysis. Try adjusting the sample.
6) Optimization algorithm may perform poorly. Try other alternatives.
7) Algorithms may fall out the domain of estimation parameters. Try optimizing the squared coefficients.
Such models are nonlinear in nature and therefore there is no guarantee that they will always converge and yield proper estimation results. It really needs "your" time and effort to get it work.
Re: DCCGARCH11
Hi Trubador,
I used the addin for 5 time series. I think the results are fine?! I attached the work file. My question is, if its possible to get the variance covariance matrix for the time varying correlations to use the matrix for portfolio optimization. I did get it right that the rho_12_01 is the correlation between series 1 and 2 and so on?
Thank you very much for you help!!
I used the addin for 5 time series. I think the results are fine?! I attached the work file. My question is, if its possible to get the variance covariance matrix for the time varying correlations to use the matrix for portfolio optimization. I did get it right that the rho_12_01 is the correlation between series 1 and 2 and so on?
Thank you very much for you help!!
 Attachments

 model_results_forum.WF1
 (468.44 KiB) Downloaded 257 times
Who is online
Users browsing this forum: No registered users and 2 guests