Search found 7 matches

by veryconfusedmgarch
Sat Jul 22, 2017 6:18 am
Forum: VARs (Vector Autoregression Models)
Topic: Diebold and Yilmaz (2012) crashes
Replies: 1
Views: 5792

Diebold and Yilmaz (2012) crashes

Hi, I was trying to run the replication file for Diebold and Yilmaz (2012) in RATS 8.2. I left the hash operator out as it is a new feature for the 9.2 version. However,the program runs smoothly until the line that initialize spillstats over the rstart and rend period "gset spillstats rstart re...
by veryconfusedmgarch
Tue Jul 04, 2017 4:26 am
Forum: ARCH and GARCH Models
Topic: MGARCH with robust option
Replies: 5
Views: 26398

Re: MGARCH with robust option

Hi Tom, The total sample size is about 900. But this will be separated into three sub-samples and hence the reduced sub-sample you saw just. Do you think it is a huge problem with this sample size? Would you consider the model is valid given that it has a negative A(1,1) and A(2,2), and a positive A...
by veryconfusedmgarch
Mon Jul 03, 2017 7:17 pm
Forum: ARCH and GARCH Models
Topic: MGARCH with robust option
Replies: 5
Views: 26398

Re: MGARCH with robust option

I assume you must have done DISTRIB=T. That's the estimate for the degrees of freedom. Thanks Tom! I can't help but to think that you know everything. Just another minor issues, The code compute gstart=764,gend=912 garch(p=1,q=1,DIST=T,ROBUST,model=varmodel,mv=bekk,pmethod=simplex,piters=10,iters=6...
by veryconfusedmgarch
Mon Jul 03, 2017 10:01 am
Forum: ARCH and GARCH Models
Topic: MGARCH with robust option
Replies: 5
Views: 26398

MGARCH with robust option

Hi, I'm just wondering what is the "Shape" variable in the output list? Thank you! 35. B(3,2) -0.005499489 0.035456768 -0.15510 0.87673928 36. B(3,3) 0.896992221 0.056335815 15.92224 0.00000000 37. D(1,1) -0.413873540 0.201963278 -2.04925 0.04043753 38. D(1,2) -0.056871036 0.148981136 -0.3...
by veryconfusedmgarch
Wed Jun 21, 2017 5:19 pm
Forum: ARCH and GARCH Models
Topic: RE:Cross volatility
Replies: 5
Views: 14019

Re: RE:Cross volatility

That's sufficiently non-standard that it would have to be done using MAXIMIZE. I'm a bit unsure about how that works though. Why wouldn't the squared terms for Asian markets on each other be lagged? I understand US and UK on current Asian markets, but not using current Asian markets throughout. (Fo...
by veryconfusedmgarch
Wed Jun 21, 2017 2:36 pm
Forum: ARCH and GARCH Models
Topic: RE:Cross volatility
Replies: 5
Views: 14019

Re: RE:Cross volatility

I assume that's a timing issue? That's definitely not BEKK---if it weren't for the t vs t-1's in the last matrix, this would be the VARIANCES=SPILLOVER model. You have a model for the variances, but what about the covariances? CC or DCC? Yes, it's definitely not BEKK - I just meant that I know the ...
by veryconfusedmgarch
Wed Jun 21, 2017 12:01 pm
Forum: ARCH and GARCH Models
Topic: RE:Cross volatility
Replies: 5
Views: 14019

RE:Cross volatility

Hi, I am new to RATS and I have a question on how to estimate the following specification within RATS. The conditional mean equation is, screenshot.543.jpg And the conditional variance is screenshot.542.jpg Note that some errors are comtemperneous i.e. SG, HK and JP and errors of UK and US are lagge...