Search found 6 matches

by marinbozic
Sat Jun 25, 2011 3:02 pm
Forum: Other RATS Usage Questions
Topic: File associations and RATS autostart
Replies: 3
Views: 9878

Re: File associations and RATS autostart

What confuses me is that when I try to reinstall RATS and uncheck the "Desktop" option as can be seen in attached snapshot, a folder with shortcuts is still created in Desktop. Is this an error that is due to my OS? What I am trying to say is that I believe that optionality is embedded in ...
by marinbozic
Thu Jun 23, 2011 5:30 pm
Forum: Other RATS Usage Questions
Topic: File associations and RATS autostart
Replies: 3
Views: 9878

File associations and RATS autostart

Hi Tom, When I first installed RATS, it created a folder with shortcuts on my desktop. I didn't need that folder so I deleted it. Now, every time I want to start an .RPF file with RATS directly by clicking on it (with RATS not opened when I do that), it says RATS needs to be configured first, and th...
by marinbozic
Mon Jun 13, 2011 11:45 pm
Forum: ARCH and GARCH Models
Topic: xregressors in multivariate GARCH
Replies: 0
Views: 4245

xregressors in multivariate GARCH

Hi all, What is the state-of-art method for incorporating xregressors in variance equations in GARCH models? So far, I have encountered BEKK models, but they impose severe sign restrictions on the impact of regressors, and EGARCH models of various flavors (i.e. constant and time-varying correlations...
by marinbozic
Mon Jun 13, 2011 12:00 am
Forum: ARCH and GARCH Models
Topic: St. errs. changed when re-running MAXIMIZE after convergence
Replies: 2
Views: 5566

St. errs. changed when re-running MAXIMIZE after convergence

Hi Tom, I have noticed that repeated execution of MAXIMIZE command using last obtained parameter estimates as initial values in subsequent executions of that command yields unreasonably low standard errors of GARCH parameters. I am running Koutmos (1996) code you posted here: http://www.estima.com/f...
by marinbozic
Thu Jun 02, 2011 11:24 am
Forum: ARCH and GARCH Models
Topic: GARCH: RATS 7.3 and 8.0 giving different results?
Replies: 0
Views: 4285

GARCH: RATS 7.3 and 8.0 giving different results?

UPDATE 06/05/2011: I have removed the data file as it contains proprietary data. Hi Tom, This is a follow-up on our conversation from this morning. I am attaching a RATS code that is giving me different results in RATS 7.3 and RATS 8.0. In 7.3, my results with MAXIMIZE are essentially the same as wi...