every video of this playlist is very easy to understand, comprehensive and just efficient. thanks a lot! great examples as well
@PatObi2 жыл бұрын
Thank you.
@SM27_11 Жыл бұрын
Sir, you are marvelous. Lots of respect for u from India
@mynameisjoejeans Жыл бұрын
Great video prof, thank you. Can LSDV be used on endogenous variables? and Can it be used with time lags?
@biancafeitoza4030 Жыл бұрын
Thank you very much!! Very helpful. Greatings from Brazil.
@ZhongdaSun Жыл бұрын
Thank you so much Professor Pat, it is very clear and concise!
@rutniken47468 ай бұрын
Thank you so much, easy to understand
@davidmontano6540 Жыл бұрын
Hi! In this example, LSDV model would suggest dummy Variable for Firm 7 (D7) is not statistically significant. As far as I know, to correctly interpret all other dummies we need to ensure that every single dummy coefficient must be indeed significant. Is this correct? Ignoring D7 significance yields in wrong conclusions? Thank you in advanced for your effort!
@daffananda730310 ай бұрын
Excuse me sir, is that necessary to do the classic assumptions test (heteroskedasticity and multicoliniarity) in LSDV?
@ayodejinajeemiziaq9166Ай бұрын
Can you please explain how to do this from Excel before importing to eviews
@xeniama98392 жыл бұрын
Very nice explanations!
@dumitrachecristina85613 жыл бұрын
Hello and thank you for the great videos. One question if you don't mind: although I have 24 countries and made 23 dummy variables, I am having a problem when running the equation because I get the error "Near singular matrix". Would you be so kind and help me solve the problem, please?
@PatObi2 жыл бұрын
Sorry for the very late response. You have TOO MANY DUMMY VARIABLES. Because dummies use 1 and 0 as values, it causes the estimator to see the dummy variables in your panel as almost perfectly collinear.
@oskarikoskela47352 жыл бұрын
@@PatObi Hi, what is a "reasonable" amount for dummies? I'm experiencing the same "near singular matrix" problem but I'm working with data relating OECD countries (38 countries) so what dummies should I eliminate? Or should I try completely different model?
@matheusmeneghin86512 жыл бұрын
@@PatObi i have 11 Regions, should i do only 2 dummies or how many dummies should i do?
@VSP45912 жыл бұрын
You could take all 24 dummy but you have to eliminate the intercept (C). If you have 23 dummy, you may keep the intercept. In this case C will include the coefficient of the 24th variable.
@PatObi2 жыл бұрын
@@matheusmeneghin8651 Please use a different FE method, that is, instead of LSDV method
@agoogleuser64522 жыл бұрын
Excuse me sir, My panel data set is non stationery at level and stationery at first difference. What is the next step I need to follow? Thanks in advance.
@PatObi2 жыл бұрын
Test for panel cointegration and if cointegrated, run Panel VECM. Don't forget to watch the series, Panel VAR.
@agoogleuser64522 жыл бұрын
@@PatObi I watching your series. Very informative and clear ❤️
@agoogleuser64522 жыл бұрын
@@PatObi Excuse me Sir my panel data is no cointegration. Can I use OLS regression? Is it okay?
@khotibulumam75762 жыл бұрын
Excuse me mr. Pat Obi can i have your data if you don't mind?
@datax-analytviews80092 жыл бұрын
If am having 28 companies, how many dummys should i estimate with the model?
@PatObi2 жыл бұрын
27, but that's too many dummy variables. Use a different approach.
@JuStFoRqUicK2 жыл бұрын
@@PatObi what kind of approach would you suggest? perhaps adding dummies only for time might be a solution?
@AbdulJabbar-vv6hr2 жыл бұрын
if we change the base group will the value of b1 and b2 be impacted other than b0??
@卓卓-m4c2 жыл бұрын
Excuse me sir, may I ask if LSDV is FE-OLS, I often see FE-OLS in papers recently but not sure if it is the same as LSDV?
@rohtashbhall2671 Жыл бұрын
what about dummy variable D1 to D9. Where is D3 TO D8 along with B3 to B8. Thanks
@ManduPonkanshi2 жыл бұрын
hi sir I only have 20yrs of data and 6 dummy variable but I am getting near singular matrix error pls help me
@Indahem2 жыл бұрын
can we use LSDV to test the effect of bond rating on bond price performance? (for example: if company's bond rating is AAA, D1=0, otherwise is 0)?
@matheusmeneghin86512 жыл бұрын
Do i Also include the controlled variables or can i ignore them for fixed effect and put just dependent and independent
@PatObi2 жыл бұрын
You can include them in the model
@TinaTina-xn9on Жыл бұрын
If I have hundreds of firms, I have to create hundreds of dummy variables?
@Looooly323 жыл бұрын
how can we add a time fixed effects in addition to the firms fixed effects? thank you.
@PatObi3 жыл бұрын
You can create dummies for time. On EViews, you can check the box as I show in video 5 of 9.