Search found 11 matches

by iboha
Sat May 16, 2015 5:24 am
Forum: Econometric Discussions
Topic: Control variable?!
Replies: 0
Views: 513

Control variable?!

Hi,everyone, I am a bit confused on how to use control variable. For example, if I am studying on the relationship between economic growth and energy consumption, and I would like to use capital stock(K) and labor(L) as the control variables. So in VAR setting(e.g. Eviews), I tend to put K and L in ...
by iboha
Tue May 06, 2014 7:08 am
Forum: Econometric Discussions
Topic: ARDL+lag length+serial correlation
Replies: 0
Views: 1144

ARDL+lag length+serial correlation

Hi,dear all, I am trying to learn ARDL technique. I have two I(1) annual variables A and B. According to AIC, I found that the optimal combination of lag length is (2,3) for A as dependent variable and (3,1) for B as dependent variable. However, the model suffer from the problems of serial correlati...
by iboha
Thu May 01, 2014 6:29 am
Forum: Estimation
Topic: Toda and Yamamoto causality test
Replies: 19
Views: 12922

Re: Toda and Yamamoto causality test

Dear samijo, thanks for the reply. Could you please explain more about how it should be done "the other way around"? Dear Trubardo, thank you for your reply and truely sorry for many questions being asked. Thank you very much for your great patience.Well, I did refer to the manual, some bo...
by iboha
Sun Apr 27, 2014 10:29 am
Forum: Estimation
Topic: Toda and Yamamoto causality test
Replies: 19
Views: 12922

Re: Toda and Yamamoto causality test

By the way, if KPSS cannot reject stationarity at 10% while ADF and PP both reject unit root at 10%,is it safe to conclude that the series is stationary please? I tend to use unit root test with structural breaks(e.g. ZA) to confirm the finding. However, if I am not mistaken, dear Trubardo, you remi...
by iboha
Sun Apr 27, 2014 10:06 am
Forum: Econometric Discussions
Topic: Unrestricted VAR for granger causality
Replies: 3
Views: 2705

Re: Unrestricted VAR for granger causality

Any experts or guru please help me out! Thank you so much in advance!
by iboha
Sun Apr 27, 2014 10:05 am
Forum: Estimation
Topic: Toda and Yamamoto causality test
Replies: 19
Views: 12922

Re: Toda and Yamamoto causality test

Dear Trubador, I am sorry that I could not follow up your reply in time because I could not access internet due to network maintainance for the past few days. I almost got mad without internet access. And finally the technician came and the internet connection is OK now.Thank God! Anyway,thank you s...
by iboha
Mon Apr 21, 2014 7:46 pm
Forum: Econometric Discussions
Topic: Unrestricted VAR for granger causality
Replies: 3
Views: 2705

Re: Unrestricted VAR for granger causality

Has anybody encountered this kind of issue before? Or is it that I should not use VAR to test granger causality please? My understanding is that VAR is in line with granger causality. However, if it is not appropriate then is it right that I should just use the Group function of pariwise granger cau...
by iboha
Mon Apr 21, 2014 7:40 pm
Forum: Estimation
Topic: Toda and Yamamoto causality test
Replies: 19
Views: 12922

Re: Toda and Yamamoto causality test

Thank you very much Dear Trubardo again for your kind help. The ec variable is energy consumption per capita and gpc is GDP per capita. They are both annual data. Actually I adjusted gpc to be in real term. But I am not sure whether the way I did is correct or not. Could you please comment on this? ...
by iboha
Mon Apr 21, 2014 6:54 am
Forum: Estimation
Topic: Toda and Yamamoto causality test
Replies: 19
Views: 12922

Re: Toda and Yamamoto causality test

Thank you so much dear Trubador. As I understand from your reply,there may be something wrong with the unit root test results interpretation, I present herewith my unit root results in the attachment. Since by visual check, there is clear trend shown by the data plot(please see the attachment), ther...
by iboha
Mon Apr 21, 2014 3:17 am
Forum: Estimation
Topic: Toda and Yamamoto causality test
Replies: 19
Views: 12922

Toda and Yamamoto causality test

Dear all, I have two series, one is I(1) and another is I(0). I used Toda and Yamamoto way to test the causality between the two. However, the results of cointegration test and the granger causality test are contradictory. The cointegration test indicates 1 cointegration exists but the granger causa...
by iboha
Mon Apr 21, 2014 3:13 am
Forum: Econometric Discussions
Topic: Unrestricted VAR for granger causality
Replies: 3
Views: 2705

Unrestricted VAR for granger causality

Dear all, I have a question regarding VAR.Please lend your hand. I have two time series that are both I(0). I established a unrestricted VAR in order to test for the causality. However,when I tried to select the optimal lag length using the information criterion in Eviews I faced some problems. All ...

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