EViews.com

Hello Eviews users and moderators Please assist with the following. Eviews 10: I am estimating two linear equations that have the same explanatory variables, except for one variable that is defined differently for one equation versus another one. I need to test for statistical significance of the co...

Hello Eviews users I am estimating a linear probability model (OLS), instead of probit, for a regression where a dependent variable is binary. I then need to test the significant of the sum of the two coefficients. Is Wald (F) test still valid for such estimation, given that the dependent variable i...

Dear Moderators May I ask for assistance on the set of results related to an IV estimation. I am running a regression whereby a firm value LNMB is regressed on a number of variables, of which foreigners, dexpats, is believed to be an endogenous variables because of a two-directional causality betwee...

Thank you Glenn.

Dear Moderators I am using Eviews 9 currently and am working with Undated/Unstructured panel. I need to estimate an OLS with se clustered at firm level. I did the follows: modified the structure of the file by specifying Firm ID as a Identifier Series. Then, when estimating the regression, in the Pa...

Hello I have created an Unstructured data file to estimate the regressions where 250 firms have several variables' observations across several years, however each firm has a different number of years for which data are available, hence, unstructured file. Does it make much sense to estimate an OLS r...

I estimate the first stage Probit (selection stage) (without a code, built-in options in Eviews) and then compute the Inverse mills ratio using the code. Then, I estimate OLS (built-in, not a code) and explicitly include a previously stored Imills as an additional explanatory variable. I don't think...

But this only confirms what I mentioned earlier that Heckit and manual estimation return completely different results.

Thank you, the two codes return the same results for Imills series.

Not really, these models are widely used in academic publications, some streams of research assume they are used no matter what. Thank you for the example of the program. Please confirm, is the below program to compute Inverse Mills ratio correct? Thanks a bunch :D eq01.makeresid ordinary eq01.maker...

I also wonder why a coefficient on Inverse Mills ratio is not reported when Heckit is used. It's kind of a big deal to discuss whether or not it is significant, at least for academic publications. Thank you.

I used Heckam two-step option.

I see... Is the command to compute the Inverse Mills raito at least correct? Thanks Startz.

Thank you again! I have a related quesiton/observation. I also estimated Heckit in Eviews and then did the same manually: I estimated the first-stage probit model, then computed Inverse mills ratio using one of the commands provided in the forum earlier, and then used it as a dependent variables in ...

Thank you Startz! Do you suggest that the second-stage estimation will be incorrect? The reason I fell for the manual estimation is because the Eviews' built in option returns negative R-squared and some menaingless results, compared to standard OLS estimation. This is why I decided to try manual es...