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Does anyone have any ideas? Please???

Hi all, I'm running a panel two-stage-least-square and I wanted to instrument for two different variables that I think are endogenous. However, I do not want to use the same set of instruments for both variables...How do you input the instruments in the Eviews TSLS so as to define which IVs you want...

And if, say, I had large value of observations (say 200) and a small value of time periods (say15)...?

Never mind a little more number jumbling and I've realised that only the ones with no zero values can't be estimated. Thanks soooo much for your help guys, now I've just got to work out why no zero values make it through! P.S. You can't control for random or fixed effects in limitied dependent varia...

I workerd through your advice on Eviews and found that for some of my datasets there were indeed no zero values (of my binary dependent variable) making it through to the estimated equation. HOWEVER... for some I did find a proportion of zero values making it through. For instance one dataset return...

Thanks Gareth,
That sounds useful but how can I do this when Eviews won't let me run the equation in the first place?

Thanks for the quick reply Startz, Given that it has removed some observations due to NA, how do I check what observations remain? (i.e. how do I look at the dependent variable series that is left over in order to check that this is the problem I'm experiencing?) In order for this warning sign to ap...

I have been running a probit model as part of a HECKMAN TWO STEP method on Eviews. I'm using a panel dataset. When I try and estimate the probit model over all the observations, I get a sign come up saying: - DEPENDENT VARIABLE HAS NO VARIANCE. But my dependent variable (a binary choice) clearly doe...

Hi, I'm running a test to compare using cross sectional random effects versus cross sectional fixed effects. Firstly I want to make sure the correct test to use is the Hausman test, right? (p.s.I'm using panel data) Secondly when I carry out such a test I get this warning appear: - ** WARNING: estim...

Excellent massive help, cheers guys!
One other quick question is there any difference (statistically) form running a wlad test where all coefficients are equal to zero and running a redundant variables test for all the variables?

Ok so say I want to conduct a range of redundant variable tests on a range of different combinations of variables, should I then explicitly state in the original estimation that I want only observations where each variable is not equal to NA. Can I impose more than one "if" condition on my...

Thanks for the help guys, I'll see if I can get around this by using your method Gareth...
Cheeky I know, but are there any other software packages that will do this automatically for me? In particular will Stata do this for me?
Thanks again!

Hi there, I'm running a panel dataset which is unbalanced. When I try to test for redundant variables in Eviews I get this caption come up:- "the test specifications have different samples due to NAs in original or test series. Re-estimate original equation with restricted sample and rerun test...

Hi guys,
Sorry to be a pest but I'd really like to know if EVIEWS provides a procedure to correct the standard errors on coefficients in the Heckman two step?
Please someone help!
Macky

Hi there, I'm running a test on the supply of a variable amongst agents and I wanted to use a Heckman two step to split my data into an eligibility decision for supply and an amount decision for nonnegative values. I was going to run a probit and the use the inverse mills ratio in the second stage o...