Search found 11 matches
- Thu Mar 15, 2012 8:37 pm
- Forum: Estimation
- Topic: VAR & IRF: contemporaneous responses
- Replies: 0
- Views: 2370
VAR & IRF: contemporaneous responses
Hi, The error terms of a reduced VAR model are contemporaneously associated, so people often use Cholesky decomposition to orthogonalize them. However, in Eviews, I can only see the impulse responses at period 1 to, say, 10, but not the contemporaneous part, whereas Stata seems to report from period...
- Mon Jan 16, 2012 12:23 am
- Forum: Econometric Discussions
- Topic: Negative Values in Time Series
- Replies: 2
- Views: 7471
Re: Negative Values in Time Series
Hi Shane, Not sure if you tried to log a % rate of change, but if you did, it's wrong. Since the rate of change is defined as "P(t)/P(t-1)-1," you should consider adding back 1 and log it, which will become "log(P(t))-log(P(t-1))" now. Inflation in annual term can't be higher tha...
- Sat Jan 14, 2012 9:04 pm
- Forum: Econometric Discussions
- Topic: interpreting VAR and generalized impulse responses
- Replies: 0
- Views: 3577
interpreting VAR and generalized impulse responses
Hi all, Suppose two variables, X and Y, both of which are I(1) variables but not cointegrated. Hence, I difference them, and specify a VAR(p) model, where p can be chosen by AIC or SIC, if you'd like. Since I'm interested in the interaction between them, I'd ignore responses of each to a shock to it...
- Mon Dec 26, 2011 1:10 am
- Forum: Econometric Discussions
- Topic: VAR Granger Casuality Test for FDI,Production and TFP HELP!
- Replies: 1
- Views: 3462
Re: VAR Granger Casuality Test for FDI,Production and TFP HE
Hi Lau, You should first read any econometrics textbook coz how you should go about it depends on data and sometimes it's very hard to make a judgement call without having a firm foundation on econometrics, but I can at least outline what you should be doing: 1. check if your variables are I(1) seri...
- Mon Dec 26, 2011 12:54 am
- Forum: Econometric Discussions
- Topic: VECM - a weird case
- Replies: 0
- Views: 2429
VECM - a weird case
Hi, I've got three I(1) series, each of which is reported to have a unit root with no drift nor trend. Nevertheless, Johansen's testing procedure (both trace and max-eigenvalue tests) indicates 3 cointegrating relations when specified with a drift in CE and 2 without it. I know it can hardly be the ...
- Mon Dec 26, 2011 12:34 am
- Forum: Econometric Discussions
- Topic: VECM - Interpretation of Estimates
- Replies: 5
- Views: 24476
Re: VECM - Interpretation of Estimates
Hi, Being not familiar with your 4 variables, I can't tell you much about the result, but it looks strange that a differenced term is entered into CE and as a result that the twice-differenced term of that variable appears in the equation. Are all your 4 variables I(1), including d(ASA)? Even if it ...
- Thu Dec 22, 2011 7:44 pm
- Forum: Econometric Discussions
- Topic: Maximum eigenvalue versus trace tests: which one is better?
- Replies: 1
- Views: 6309
Re: Maximum eigenvalue versus trace tests: which one is bett
read this: Maximum eigenvalue versus trace tests for the cointegrating rank of a VAR process (Helmut Lüutkepohl, Pentti Saikkonen, Carsten Trenkler) The Econometrics Journal Volume 4, Issue 2, pages 287–310, December 2001
Hope it helps.
Hope it helps.
- Thu Dec 22, 2011 10:42 am
- Forum: Programming
- Topic: cointegration lag choice
- Replies: 2
- Views: 4220
Re: cointegration lag choice
This is working beautifully.
Thanks Gareth!!
Thanks Gareth!!
- Thu Dec 22, 2011 10:37 am
- Forum: Programming
- Topic: cointegration lag choice
- Replies: 2
- Views: 4220
cointegration lag choice
Hi all, I wrote the code posted below, and seems to be working ok, except that the number of lags, which is needed to be specified as follows: grp.coint(s,numlag) Here I want numlag to be called from the matrix "vl" but it only takes the default value 4, even with the code written as below...
- Wed Dec 14, 2011 7:34 am
- Forum: Data Manipulation
- Topic: repeatedly executing the same operations
- Replies: 2
- Views: 4242
Re: repeatedly executing the same operations
Thanks startz. That was why!
- Wed Dec 14, 2011 4:31 am
- Forum: Data Manipulation
- Topic: repeatedly executing the same operations
- Replies: 2
- Views: 4242
repeatedly executing the same operations
Hi, I've been using Eviews for years but new to programming. I've obtained a code from this forum and modified as follows: %file = "C:\Desktop\MyData.xls" wfopen(page=ALL) %file for %s MO AXP BMY CSX CSC CAG COP DOW DD FE GIS HIG HPQ HON IBM IP KFT MCD MET NWS SWY SPG TGT KR TWX UNP WMT DI...
