Search found 18 matches

by hetero
Mon Nov 09, 2009 6:16 am
Forum: Programming
Topic: johansen test for cointegration
Replies: 4
Views: 8196

Re: johansen test for cointegration

Hello,

You can proceed to cointegration even if there is a mix of I(0) and I(1) variables! Each stationary variable will reveal itself as a cointegrating vector.

Regads
by hetero
Thu Nov 05, 2009 11:42 am
Forum: Programming
Topic: johansen test for cointegration
Replies: 4
Views: 8196

Re: johansen test for cointegration

Hello ermutuxia,

I don’t know if you are familiar with cointegration analysis within the Johansen framework but how do we proceed in the case where there is a mix of I(0) and I(1) variables?

Regards
by hetero
Thu Nov 05, 2009 11:33 am
Forum: Estimation
Topic: logit model
Replies: 9
Views: 18089

Re: logit model

In a previous post I wrote the following: For those who might be interested in estimating standard errors for the associated marginal effects take a look at the two following papers! Anderson, S. and Newell, R. (2003). Simplified marginal effects in discrete choice models. Economics Letters, 81. 321...
by hetero
Mon Nov 02, 2009 5:11 am
Forum: Estimation
Topic: exogenous variables and cointegration
Replies: 0
Views: 2571

exogenous variables and cointegration

My question has to do with the Johansen cointegration technique and with the associated error-correction model. The question is how can I define a list of exogenous I(1) variables whose effects are assumed to be confined to the cointegrating relationships (restricted actually to the cointegrating sp...
by hetero
Sat Oct 24, 2009 6:26 am
Forum: Econometric Discussions
Topic: The Johansen approach with a mixture of I(0) and I(1)
Replies: 0
Views: 3844

The Johansen approach with a mixture of I(0) and I(1)

Hi, I would like to examine if 5 variables are cointegrated. The problem is that 4 of them are I(1) (3 independent variables plus the dependent variable) and one is I(0)(independent variable). I know that a cointegration can be established (without worrying about the integration order of the variabl...
by hetero
Fri Oct 23, 2009 3:43 am
Forum: Program Repository
Topic: Zivot-Andrews Unit Root Test
Replies: 36
Views: 272471

Re: Zivot-Andrews Unit Root Test

Hi Trubador,

Please forgive me for the indiscreet question but is there any intension to complete the program by incorporating Monte Carlo simulations?

Kind Regards
by hetero
Tue Oct 20, 2009 10:17 am
Forum: Estimation
Topic: Binary Probit Estimation
Replies: 1
Views: 3320

Re: Binary Probit Estimation

hi

Try to see more carefully the forum. There are exact answers to your questions.

Regards
by hetero
Tue Oct 20, 2009 9:08 am
Forum: Econometric Discussions
Topic: dummy variables relevance
Replies: 1
Views: 3759

Re: dummy variables relevance

hi

You can continue to the estimation without dropping the variable
by hetero
Tue Oct 20, 2009 3:13 am
Forum: Program Repository
Topic: Zivot-Andrews Unit Root Test
Replies: 36
Views: 272471

Re: Zivot-Andrews Unit Root Test

Dear Trubador,

It would be of great pleasure if a Monte Carlo simulation was also applied to calculate the exact critical values according to the sample size used each time. Is it hard to program something like that? Once again thank you for your contribution!

Regards
by hetero
Sun Oct 18, 2009 5:00 am
Forum: Estimation
Topic: probit/logit models: calculation of the probability of event
Replies: 4
Views: 10834

Re: probit/logit models: calculation of the probability of event

From the estimated equation window select: view representations. Now select and copy the formula for the substituted coefficients. It should look like, depending on the variables you have used, something like this: GRADE = 1-@CNORM(-(-7.45231964735 + 1.62581003927*GPA + 0.0517289454976*TUCE + 1.4263...
by hetero
Thu Oct 08, 2009 7:39 am
Forum: Estimation
Topic: logit model
Replies: 9
Views: 18089

Re: logit model

hi,

In step 4 you estimate l_xb which is a scalar ( a single value – not a series ).

In stap 5 multiply l_xb (scalar) to each single coefficient to get the marginal effect (l_xb*coefficient)

regards
by hetero
Thu Oct 08, 2009 12:53 am
Forum: Estimation
Topic: Detecting influential observations
Replies: 3
Views: 6920

Re: Detecting influential observations

Hi,

Another thing that you may do, if the purpose is to detect those observations which are highly correlated within your sample, is to estimate rolling correlations for a sample window of lets say 20 observations. I don’t know if my suggestion is of any help!

Regards
by hetero
Tue Oct 06, 2009 2:49 am
Forum: Program Repository
Topic: Zivot-Andrews Unit Root Test
Replies: 36
Views: 272471

Re: Zivot-Andrews Unit Root Test

Hi, I have compared the results delivered from the above E-views code with those delivered from the corresponding RATS code. They are identical. This is a perfect piece of work. We are grateful Trubador!! For users convenience the asymptotic critical values are provided below: model Α model Β model ...
by hetero
Fri Sep 11, 2009 7:45 am
Forum: Estimation
Topic: logit model
Replies: 9
Views: 18089

Re: logit model

Hello, Usually we estimate marginal effects for a “typical” individual. Therefore, given that all your independent variables are continuous, calculate the mean value for the sufferingF series. scalar xb= @mean(sufferingF) then estimate the following scalar scalar l_xb = @dlogistic(-xb) And you are d...
by hetero
Fri Sep 11, 2009 7:27 am
Forum: Estimation
Topic: St. Errors for Marginal Effects in Probit Model (Delta met.)
Replies: 1
Views: 3688

Re: St. Errors for Marginal Effects in Probit Model (Delta met.)

For those who might be interested in estimating standard errors for the associated marginal effects take a look at the two following papers! Anderson, S. and Newell, R. (2003). Simplified marginal effects in discrete choice models. Economics Letters, 81. 321-326. Carlevaro, F. and Senegas, M. (2006)...

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