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+emr glr Thank you. I would like to invite you to join Hossain Academy Facebook for greater interaction about economics, finance and econometrics with me. Thank you Sayed Hossain from Hossain Academy. Please join below and post your question .facebook.com/groups/hossainacademy/
Great Video Mr. Sayed! I got a question for you. i'm working on a database where in the first column i've a list of companies, the second column i got the year where it starts with 1990 and finish with 2010 for each company, and in the other column i've all my independent variables. On my db i've also classified all my sample on Fama French industrial classification, indeed i got 49 groups and i call that column "test123". When I try to use xtset and use as parameter test123 Year , any time STATA tells me "repeated time values within panel r(451)". I don't get the point cause in this video your column YEAR is equal to mine (starts with 2000 and reach 2010 and then it starts again) and more or less for the CompanyCode. Do you know where i wrong? thanks a lot!
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Thank you Nande, I would like to invite you to join Hossain Academy Facebook at below link and post your question there. Thank you once again, Sayed Hossain from Hossain Academy. facebook.com/groups/hossainacademy/
Thank you Ghandi, I would like to invite you to join Hossain Academy Facebook at below link and post your question there if you have any. Thank you once again, Sayed Hossain from Hossain Academy. facebook.com/groups/hossainacademy/
Dear Sayed Hossain. I had gone through several videos but the doubt I had wasn't getting clarified. To be frank, your English wasn't really great but your content is excellent. This had made me realize that knowledge and language abilities aren't strongly positively correlated. Great work. Keep it up!
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Hi, thank you for the video! May I know how do I create year-month * country fixed effect? My year-month variable is in '2010Jan' form, and i try to create by adding i.country*yearmonth, and no observation is produced. Thank you for your time！
Thank you sir for the excellent video.I have run the FE and RE for research data. After running the Hausman test , the results shown are the two models are different. Could you please help on that
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Thúy Lê Thank you. You are welcome to join Hossain Academy facebook to share with us your experiences and knowledge. Thank you Sayed Hossain. The link is given below to join Hossain Academy facebook
Thank you so much for the video. It's really helpful! I have different results of your example of the video. My results is that Fixed model is better than Random model. And then, I reject the Null in the Pesaran CD test. So, here is my question. As the next step, if I use system GMM or difference GMM, then can I deal with the problem which is serial correlation.
Dear Mr. Hossain, I run all the commands that you mentioned and the Hausman effect indicated that I should use the Fixed Effect model. Though, when I run the Breusch-Pegan LM test, the probability was not significant so it indicated that I should use the Pooled OLS..Is there some way now to choose between Pooled OLS and Fixed Effect model? Do you have any advice? Thank you.
I need you contact Sir. I am research student and having issues with my data. I coundn't run the Fixed and random Effect models. i typed xtreg in the command after setting industry as panel id and year as time variable. it brought an output saying no variable estimate. My panel data is balanced.
Dear sir, when I do the hausman test, there is always a Note said: the rank of the differenced variance matrix (6) does not equal the number of coefficients being tested (8); be sure this is what you expect, or there may be problems computing the test. Examine the output of your estimators for anything unexpected and possibly consider scaling your variables so that the coefficients are on a similar scale. Could you please tell what does it mean?
Dear Sayed , thank you for the video it's very instructive, however, i was wondering how could we do for dummy varialbles, if we want to include them as variables?
Dear Yassine, Thank you. I would like to invite you to join Hossain Academy Facebook at below link and post your question there. Actually I am in that group and may help you. Thank you once again, Sayed Hossain from Hossain Academy. facebook.com/groups/hossainacademy/
Hi. This is a good video. How can I test the Fama French factor pricing module by estimating a random effect module? Could you tell me the nature of the random effects module? How can I then test the HD in the residuals? How can I adjust the module estimates? How to test the joint significance of the intercepts? Thank you for your time.
Thank you for the video, sir I would like to know that how do I use PCA on panel data. I have data of "crime against women" which is cross sectional and time series. And I want to create an index using PCA. But how should I approach pca for panel data in stata . Please explain. Or if possible please make a video.
Hello Mr Sayed, thank you very much for this wondrfull video, i shall ask you one small question, i do the same example, but my probability is: Pr=0,00006? what it means, and what can i do else? thank you very much
stoka stokosana Happy to see that you have been benefitted from videos of Hossain Academy. Thank you Sayed Hossain from Hossain Academy at www.sayedhossain.com
Sayed Hossain You are welcome to join Hossain Academy Facebook to share with us your experiences and knowledge. Thank you Sayed Hossain from Hossain Academy. The link is given below to join Hossain Academy Facebook
Hello. Please, can you explain how can I choose between fixed effects models or pooled ols model? Is it the Chow test? How can I do it on Stata? Thank you very much.
what are the tests that one should carry out with Arellano-Bover/Blundell-Bond linear dynamic panel-data estimation , a GMM? just like we do normality test, serial correlation. I currently running DPD and it will be great if you can assist to know what kind of diagnostics for my data or model
Great videos! I have a question please: how can we obtain the Fixed Effect (Cross) list on Stata? Per example, the fixed effect for each computer company in case Hausman Test indicated that only the fixed effect is appropriate. Or must we add dummy variables to see the list? Thank you.
+Sayed Hossain Thank you. I would like to invite you to join Hossain Academy Facebook for greater interaction about economics, finance and econometrics with me. Thank you Sayed Hossain from Hossain Academy. Please join below and post your question.facebook.com/groups/hossainacademy/
Dear Mr Sayed, Thanks for your videos and can I use commands xtreg, fe; xtreg, re... for unbalanced data? and have Stata use information from some observation which missing at some variable (ex: Y= X1+X2+X3+X4 but some obs only have information of Y X2, X3) to estimate or Stata only estimate for observations full information?
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Dear Sarah, Thank you. I would like to invite you to join Hossain Academy Facebook at below link and post your question there. If I know the answer I shall certainly respond. Thank you once again, Sayed Hossain from Hossain Academy. facebook.com/groups/hossainacademy/
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hi. im looking for explanation on how to perform individual test on fixed effect model. specifically, my study is on "how capital flight affect economics growth".. using 5 countries, 5 independent variables, and time=2005-2015, my hausman test favored fixed effect model, and now i want to decide two situations: 1) which independent variable is strongly the cause of dependent var. 2) which country strongly facing the capital flight problem? can someone suggest me on how to solve this, or maybe links i can refer to or books i can make some revision?? thanks
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Thank you so much for this useful video. I tried to apply xtcsd, persan abs but I had this message Error: The panel is highly unbalanced. Not enough common observations across panel to perform Pesaran's test. insufficient observationsWhat should I do in this case? Do you have any recommendations? Thank you again sir for your valuable videos.
+sarah bb Dear Sarah, I would suggest you to join Hossain Academy Facebook at below link and post yourquestion there. If I know the answer I shall respond. Thank you once again, Sayed Hossain from Hossain Academy. facebook.com/groups/hossainacademy/
Sir, first of all, thank you. Secondly, you ran "Pesaran CD test" as a postestimation test for REM. But from the Stata help section, I quote " xtcsd test the hypothesis of cross-sectional independence in panel-data models with small T and large N by implementing two semiparametric tests proposed by Friedman (1937) and Frees (1995, 2004), as well as the parametric testing procedure proposed by Pesaran (2004). " So, as your T>N. so I think Pesaran CD test or "xtcsd" is not appropriate for serial correlation.
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Hi Dr Hossain, Could you suggest what could be the reason for getting the error 'estimation failed'. I continue to get this error when i try to estimate my model no matter how many times I modify the model.
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the result showed a positive relationship between sales and price, which should not be according to econometric model, so you run pesaran and found there is no serial corelation. so it ends here? what do we have to assume then? is our model good or not?
yohana ray The model is not good as it is not matching with economic theory. So we need to re run the model by changing variables, sample size etc. to get optimum results.
Dear Sayed, is it correct to run random and fixed effects models on first differenced set of variables ? the reason of using 1st difference is because some of the variables become stationary only when we take 1st difference while some are stationary at level, so I am taking first difference for all then run the RE and FE and the results seems fine, is this ok ?
I normally use data whatever I have. Normally stationary data is used in time series model. Panel data is neither stationary nor cross section. It is mixed up both. However, you can see various journals and see what they have done.
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Thank you Sir, It helped me alot and well I will be very happy if you have some lecture to understand GMM, its usage in STATA and to understand time series analysis. Please give me the relevant link of it also.
Hi, Please, can you explain briefly how can I run cross sectional regrecession in a time series data? please it is very important to me. I would like to calculate the residuals from time series data ,but cross sectionally.
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xtcsd, pesaran abs command xtcsd is unrecognized r(199); This report has been provided by Stata when I am going to test Pesaran. Why? What can I do now?
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xttest3 command xttest3 is unrecognized r(199); This report has been provided by Stata when I am going to test Heteroskedasticity. Why? What can I do now?
Dear Sayed, I have a time series data from 2006 to 2013 of Board of directors in companies. I have data on gender, size of boards, return on Assest etc. However, when I tried to prepare the data to check for serial correlation I get two error messages. 1. Panel variable: ID (Unbalanced) 2. When I tried to checked the serial correlation, I get the second error message which says Insufficient observation r (2001) I have tried to check what is wrong I could could see what is wrong with the data. Could you assist me to identifyy what is wrong with the data
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Thank you. I would like to invite you to join Hossain Academy Facebook at below link and post your question there for feedback. Thank you, Sayed Hossain from Hossain Academy facebook.com/groups/hossainacademy/
sir what if my one variable is stationary but other is non stationary. Sir can i apply VAR directly or take difference of both or any other trick? as there is no co-integration between them.
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hi, I have economic panel data and I want to know which one is endigeneous in orede to lag it or determine it in the gmm model, so how can I know this variable is endogenous and cause relation with y?, thanks
+suzan Ali Thank you. I would like to invite you to join Hossain Academy Facebook for greater interaction about economics, finance and econometrics with me. Thank you Sayed Hossain from Hossain Academy. Please join below and post your question .facebook.com/groups/hossainacademy/
Dear Eddie,, Thank you. I would like to invite you to join Hossain Academy Facebook at below link and post your question there. If I know the answer I shall respond. Thank you once again, Sayed Hossain from Hossain Academy. facebook.com/groups/hossainacademy/
Thank you. I would like to invite you to join Hossain Academy Facebook Group at below link and join our group discussion. Thank you. Sayed Hossain from Hossain Academy. facebook.com/groups/hossainacademy/
+JzBlu BerCel I would like to invite you to join Hossain Academy Facebook for greater interaction about economics, finance and econometrics with me. Thank you Sayed Hossain from Hossain Academy. Please join below and post your question .facebook.com/groups/hossainacademy/
+Almas - Thank you. I would like to invite you to join Hossain Academy Facebook for greater interaction about economics, finance and econometrics with me. Thank you Sayed Hossain from Hossain Academy. Please join below and post your question .facebook.com/groups/hossainacademy/
Mr Sayed, why your data (and also my data) has large standard error? i observed approx. 600,000 data but has large standard error. And do you know how to know significant lag in stata? Because now, i use 2 step to measure this regression, first to know when the lag in significant (using SPSS) and second regression panel data using numbers of Lag in variables that i found in SPSS. Thank you for your help.
Dear Sayed, can you tell me the basic test I need to do for the panel data, the basic test, I mean the unit root test, correlation test, serial correlation test and the residual heteroscadesticity， any other else？ thank you
张月 Unit root test you will do if you want to run Panel VAR or Panel VECM model. Otherwise no need. You will do serial correlation or hetrocedasticity test after running fixed effect and random effect model.
Christina Chiu Thank you. I would like to invite you to join Hossain Academy Facebook for greater interaction about economics, finance and econometrics with me. Thank you Sayed Hossain from Hossain Academy. Please join below and post your question.facebook.com/groups/hossainacademy/
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sir, what is the function of Lagrange Multiplier Test in Panel data regression ?? I still confuse because I have ever read in several journals explain to choose the best model between common effect and random effect, and the other side explain to heterocedasticity test in best model. please help me, thank for your goodness.
your tutorials video is very good. i have a persistent error 'unable to invoke xtset dialog' please somebody help how to diagonize the problem as i cannot proceed
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andres felipe ortiz rico Please join Hossain Academy Facebook below and post your question. Indeed I am there to share with you. Thank you Sayed Hossain from Hossain Academy facebook.com/groups/hossainacademy/
thank you for sharing this video, dear how can interpret Hausman test result to compare between FE and FE-IV model . hausman iv ---- Coefficients ---- | (b) (B) (b-B) sqrt(diag(V_b-V_B)) | iv . Difference S.E. -------------+---------------------------------------------------------------- IHS_fdx | -10.2609 -3.488869 -6.772031 1.233345 IHS_gov | -3.616735 -3.877065 .2603298 .2091792 IHS_gfcf | 3.277582 2.25975 1.017832 .1942741 IHS_trd | 1.358966 .7292542 .6297113 .1364145 IHS_gnci | .6256677 .3832061 .2424616 .0834463 IHS_lbor | -5.572129 -4.614434 -.9576948 .5514027 dum_fdx | 3.960901 -.3721835 4.333084 1.10512 ------------------------------------------------------------------------------ b = consistent under Ho and Ha; obtained from xtivreg B = inconsistent under Ha, efficient under Ho; obtained from xtreg Test: Ho: difference in coefficients not systematic chi2(7) = (b-B)'[(V_b-V_B)^(-1)](b-B) = 42.89 Prob>chi2 = 0.0000 THANK YOU
You are actually a life saver- it was actually very easy to understand, if only my university lecturers made things as clear as this.
Good video to show the selection between FE and RE. Thanks speaker.
Dear Arumugam,, Thank you. I would like to invite you to join Hossain Academy Facebook at below link and post your question there. If I know the answer I shall respond. Thank you once again, Sayed Hossain from Hossain Academy. facebook.com/groups/hossainacademy/
Thank you so much for this video. I was really of great help throughout my project work
This is indeed didactic!
I love your teaching, sir.
Dr. Sayed Hossain, you are the best tutor on UA-cam. Thanks for the video
You are most welcome
Absolutely Fantastic Explanation!!!! Thank You
Professor Sayed , thank you for the video it's very helpfull
Well presented Sir. Thank you!
very nice explanation of time series on panel data
Thank you for this work, Sir.
thank you very much, it helps my finishing project a lot
+emr glr
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Thank you for this video. Now my question is that exist any any test of endogeneity in the fix effects model. Thank you very much.
Sir, your videos help a lot. Thank You
Great Video Mr. Sayed!
I got a question for you.
i'm working on a database where in the first column i've a list of companies, the second column i got the year where it starts with 1990 and finish with 2010 for each company, and in the other column i've all my independent variables.
On my db i've also classified all my sample on Fama French industrial classification, indeed i got 49 groups and i call that column "test123".
When I try to use xtset and use as parameter test123 Year , any time STATA tells me "repeated time values within panel r(451)". I don't get the point cause in this video your column YEAR is equal to mine (starts with 2000 and reach 2010 and then it starts again) and more or less for the CompanyCode.
Do you know where i wrong? thanks a lot!
Good video. Very helpful to me. Thanks Mr. Sayed
Iddrisu sumani Thank you
Sayed
Thanks for your educative presentation
Hi Tsag, You are welcome.
Thank you for this video. clearly explain the modle
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you guys are doing a great job
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this is the best! thanks !
Thank you. This video was a great help.👍
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Dear Sayed Hossain. I had gone through several videos but the doubt I had wasn't getting clarified.
To be frank, your English wasn't really great but your content is excellent. This had made me realize that knowledge and language abilities aren't strongly positively correlated.
Great work. Keep it up!
English is not his mother tongue. He has done well. what matters most was you were able to grab the concept.
Thank u sir ...can u plz share more about Heterokedasticity and VIF test after Hausman also interpretation of it ?
This video helped me a lot. Well didactic. Thanks!!
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Dear sir , How to deal with moderating (dummy) variables in Panel Data?? thank you .
Hi, thank you for the video! May I know how do I create year-month * country fixed effect? My year-month variable is in '2010Jan' form, and i try to create by adding i.country*yearmonth, and no observation is produced.
Thank you for your time！
In this model how you can fix the problem of serial correlation and hetroscadasticity
Thank you sir for the excellent video.I have run the FE and RE for research data. After running the Hausman test , the results shown are the two models are different. Could you please help on that
Thank you very much Sir, this is nice and very helpful video lecture.
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really helpful video !
Thank Sayed Hossain! Very helpful :)
Thúy Lê Thank you. You are welcome to join Hossain Academy facebook to share with us your experiences and knowledge. Thank you Sayed Hossain. The link is given below to join Hossain Academy facebook
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clear! well explained!
Glad you think so!
Thank you for this video. :)
reza wiriarsa You are welcome
Hossain ... you are great
Thanks
Thank you so much for the video. It's really helpful! I have different results of your example of the video. My results is that Fixed model is better than Random model. And then, I reject the Null in the Pesaran CD test. So, here is my question. As the next step, if I use system GMM or difference GMM, then can I deal with the problem which is serial correlation.
Thank you Sir.
Thank you sir.
Dear Mr. Hossain,
I run all the commands that you mentioned and the Hausman effect indicated that I should use the Fixed Effect model. Though, when I run the Breusch-Pegan LM test, the probability was not significant so it indicated that I should use the Pooled OLS..Is there some way now to choose between Pooled OLS and Fixed Effect model? Do you have any advice?
Thank you.
I need you contact Sir. I am research student and having issues with my data. I coundn't run the Fixed and random Effect models. i typed xtreg in the command after setting industry as panel id and year as time variable. it brought an output saying no variable estimate. My panel data is balanced.
Dear sir, when I do the hausman test, there is always a Note said: the rank of the differenced variance matrix (6) does not equal the number of coefficients being tested (8); be sure this is what you expect, or there may be problems computing the test. Examine the output of your estimators for anything unexpected and possibly consider scaling your variables so that the coefficients are on a similar scale. Could you please tell what does it mean?
I have the same problem and have absolutely no idea what that means. Can anyone help?
Dear Sayed , thank you for the video it's very instructive, however, i was wondering how could we do for dummy varialbles, if we want to include them as variables?
Dear Yassine, Thank you. I would like to invite you to join Hossain Academy Facebook at below link and post your
question there. Actually I am in that group and may help you. Thank you once
again, Sayed Hossain from Hossain Academy. facebook.com/groups/hossainacademy/
Hi. This is a good video. How can I test the Fama French factor pricing module by estimating a random effect module? Could you tell me the nature of the random effects module? How can I then test the HD in the residuals? How can I adjust the module estimates? How to test the joint significance of the intercepts? Thank you for your time.
Thank you for the video, sir I would like to know that how do I use PCA on panel data.
I have data of "crime against women" which is cross sectional and time series. And I want to create an index using PCA. But how should I approach pca for panel data in stata . Please explain. Or if possible please make a video.
thank you!
Hello Mr Sayed, thank you very much for this wondrfull video, i shall ask you one small question, i do the same example, but my probability is: Pr=0,00006? what it means, and what can i do else? thank you very much
Thanks a lot for this video. It helped me a lot! (at least I think so :) ) Bravo!
stoka stokosana Happy to see that you have been benefitted from videos of Hossain Academy. Thank you Sayed Hossain from Hossain Academy at www.sayedhossain.com
Sayed Hossain You are welcome to join Hossain Academy Facebook to share with us your experiences and knowledge. Thank you Sayed Hossain from Hossain Academy. The link is given below to join Hossain Academy Facebook
facebook.com/groups/hossainacademy
Hello. Please, can you explain how can I choose between fixed effects models or pooled ols model? Is it the Chow test? How can I do it on Stata? Thank you very much.
what are the tests that one should carry out with Arellano-Bover/Blundell-Bond linear dynamic panel-data estimation , a GMM? just like we do normality test, serial correlation. I currently running DPD and it will be great if you can assist to know what kind of diagnostics for my data or model
I have not done anything with those test you are asking. So unable to comment.
Great videos!
I have a question please: how can we obtain the Fixed Effect (Cross) list on Stata? Per example, the fixed effect for each computer company in case Hausman Test indicated that only the fixed effect is appropriate. Or must we add dummy variables to see the list?
Thank you.
+Antoine Abi Zeid It may be possible but I never tried.
+Sayed Hossain
Thank you. I would like to invite you to join Hossain Academy Facebook for greater interaction about economics, finance and econometrics with me. Thank you Sayed Hossain from Hossain Academy. Please join below and post your question.facebook.com/groups/hossainacademy/
+Sayed Hossain Okay, thank you :)
Dear Mr Sayed, Thanks for your videos and can I use commands xtreg, fe; xtreg, re... for unbalanced data? and have Stata use information from some observation which missing at some variable (ex: Y= X1+X2+X3+X4 but some obs only have information of Y X2, X3) to estimate or Stata only estimate for observations full information?
Cương Trần I have not developed unbalanced panel yet so unable to comment...
Sayed Hossain Thank you !
By analysis take group as 1 but i have 34 countries how can i fix that?
I try egen and group but it is not working
thanks!! very good!! :))
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Prob>chi2 = 1.0000
(V_b-V_B is not positive definite)
what is that mean?
very well explained. please upload more. do you know how to do gravity model in stata?
excellent!
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Thank you very much for the video.Can i test FE and RE in SPSS?
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hi. im looking for explanation on how to perform individual test on fixed effect model. specifically, my study is on "how capital flight affect economics growth".. using 5 countries, 5 independent variables, and time=2005-2015, my hausman test favored fixed effect model, and now i want to decide two situations:
1) which independent variable is strongly the cause of dependent var.
2) which country strongly facing the capital flight problem?
can someone suggest me on how to solve this, or maybe links i can refer to or books i can make some revision?? thanks
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Thank you so much for this useful video. I tried to apply xtcsd, persan abs but I had this message Error: The panel is highly unbalanced.
Not enough common observations across panel to perform Pesaran's test.
insufficient observationsWhat should I do in this case? Do you have any recommendations? Thank you again sir for your valuable videos.
+sarah bb
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Sir, first of all, thank you.
Secondly, you ran "Pesaran CD test" as a postestimation test for REM.
But from the Stata help section,
I quote " xtcsd test the hypothesis of cross-sectional independence in panel-data
models with small T and large N by implementing two semiparametric tests
proposed by Friedman (1937) and Frees (1995, 2004), as well as the
parametric testing procedure proposed by Pesaran (2004).
"
So, as your T>N. so I think Pesaran CD test or "xtcsd" is not appropriate for serial correlation.
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Anyone can tell me what we have to do if the panel data has a serial correlation???
sir i want to know whether you have any presentation on the use of random coefficient model?
No I do not have but the best book for Panel random effect is Basic Econometrics by Gujarati.
Thanks for your
very much
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Thank you sir.... which writer's Econometrics book will be good for understand the theory..... could you please tell us.
Hi Dr Hossain, Could you suggest what could be the reason for getting the error 'estimation failed'. I continue to get this error when i try to estimate my model no matter how many times I modify the model.
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the result showed a positive relationship between sales and price, which should not be according to econometric model, so you run pesaran and found there is no serial corelation. so it ends here?
what do we have to assume then?
is our model good or not?
yohana ray The model is not good as it is not matching with economic theory. So we need to re run the model by changing variables, sample size etc. to get optimum results.
Dear Sayed, is it correct to run random and fixed effects models on first differenced set of variables ? the reason of using 1st difference is because some of the variables become stationary only when we take 1st difference while some are stationary at level, so I am taking first difference for all then run the RE and FE and the results seems fine, is this ok ?
I normally use data whatever I have. Normally stationary data is used in time series model. Panel data is neither stationary nor cross section. It is mixed up both. However, you can see various journals and see what they have done.
how to deal with control variables in panel data model????
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Thank you Sir, It helped me alot and well I will be very happy if you have some lecture to understand GMM, its usage in STATA and to understand time series analysis. Please give me the relevant link of it also.
Yes I have plan in future. Thanks
Dear Sayed,
Is the pooled regression an OLS pooled regression?
Or are these different types of regression?
Thanks in advance.
Regards,
Eric
Pooled OLS and general OLS regression that we do all the time is the same.
Sayed Hossain Thank for the quick answer :).
Hi,
Please, can you explain briefly how can I run cross sectional regrecession in a time series data? please it is very important to me. I would like to calculate the residuals from time series data ,but cross sectionally.
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sir,how to solve arellano bond estimator1995 and kean runkle1992
xtcsd, pesaran abs
command xtcsd is unrecognized
r(199);
This report has been provided by Stata when I am going to test Pesaran. Why? What can I do now?
I HAVE THE SAME PROBLME. WHAT IS THE SOLUTION IF YOU FIND IT
Sir Hossain Academy tell me plz also without stationary testing can we apply STATA Fixed effect and random effect and GLS???
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xttest3
command xttest3 is unrecognized
r(199);
This report has been provided by Stata when I am going to test Heteroskedasticity. Why? What can I do now?
Dear Sayed,
I have a time series data from 2006 to 2013 of Board of directors in companies. I have data on gender, size of boards, return on Assest etc. However, when I tried to prepare the data to check for serial correlation I get two error messages. 1. Panel variable: ID (Unbalanced)
2. When I tried to checked the serial correlation, I get the second error message which says
Insufficient observation
r (2001)
I have tried to check what is wrong I could could see what is wrong with the data. Could you assist me to identifyy what is wrong with the data
Alfred Akakpo When u arrange the data or write command wrongly, this problems arises...I do not know what has been wrong in your case....
Thank You, Sir. How to check whether the time is also variant?
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Sir, Please can explain the term - here six companies have common mean value for the interecept?
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sir what if my one variable is stationary but other is non stationary. Sir can i apply VAR directly or take difference of both or any other trick? as there is no co-integration between them.
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I asked there but no response :(
hi, I have economic panel data and I want to know which one is endigeneous in orede to lag it or determine it in the gmm model, so how can I know this variable is endogenous and cause relation with y?, thanks
Hello...I have not done until that part yet but will develop in future. Thanks
i tried to apply xtcsd, persan abs , but it does not work , it gives me unrecognized command on stata ?
+suzan Ali
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+suzan Ali you need to download the command... try "findit xtcsd"
Thank you very much. Can you please do a video on Dynamic Panel Data Model, especially the System GMM in (i) Stata and (ii) Eviews.
Eddie Mahembe I have videos on dynamic panel like FMOLS and DOLS already in Hossain Academy webapge
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how can i get stata software? please give me a link for free
I got same result the pooled model of the random model in stata programm. What I do in this case?
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Thanks Sir! it was really helpful, but I need to hear about GMM method. if you have any video about GMM, please link it.
I do not have yet
Hai..thank you very much..This is very helpful. I just wonder how I can not run the last command xtcsd, pesaran abs
Ola Hikmah You need to upload this package from Ad In option of the software so that this commend will be executed.
great video could u explain me please how to find predict value by fixed effect model
That part I have not done yet. Thank you Sayed Hossain from Hossain Academy
hello mister Sayed, i have a problem with pesaran test beacause my stata v 12 i havent this command
+JzBlu BerCel I use EVIEWS8 for Pesaran test.
+JzBlu BerCel
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where can i download the dataset sir?
sir kindly present a kind lecture on mean group model and on pooled mean group estimation in stata, or using eviews, will u,
+Almas -
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Mr Sayed, why your data (and also my data) has large standard error? i observed approx. 600,000 data but has large standard error. And do you know how to know significant lag in stata? Because now, i use 2 step to measure this regression, first to know when the lag in significant (using SPSS) and second regression panel data using numbers of Lag in variables that i found in SPSS. Thank you for your help.
Evan Soesanto what is significant lag in STATA?
Hi mr sayed your video is very good but i don't get it my question? i use panel data now i need step by step the entry into stata please! help me
Dear Sayed, can you tell me the basic test I need to do for the panel data, the basic test, I mean the unit root test, correlation test, serial correlation test and the residual heteroscadesticity， any other else？ thank you
张月 Unit root test you will do if you want to run Panel VAR or Panel VECM model. Otherwise no need. You will do serial correlation or hetrocedasticity test after running fixed effect and random effect model.
Dear Sayed, i find it is impossible to conduct the heterocedasticity for the Panel data in EVIEWS, only normality test. any suggestion?
STATA can do it but I guess not by EVIEWS.
I find it there is DW after running the fixed effect model in EVIEWS, is DW valid for the Panel data? thank you
No. DW is not valid for Panel. There is other serial correlation test available in STATA....
Thx
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How do you interpret the coefficient on the OLS pooled estimators
Pooled OLS and normal OLS is same...meaning that all companies are same in terms of style and management....meaning one company....
Ok, so what about the panel data coefficients
Poold panel data OLS cofficients and normal OLS coefficent have the same interpretation...
sir, i wanna ask about unbalanced panel problem,,could you give me tutorial or website that i can solve the unbalanced panel problem ??
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Sir, i would like to ask about link to download eviews software as free license, where is that ? thank you very much.
sir, could you give me tutorial about solving two way fixed effect model in eviews ?? thank you sir.
sir, what is the function of Lagrange Multiplier Test in Panel data regression ?? I still confuse because I have ever read in several journals explain to choose the best model between common effect and random effect, and the other side explain to heterocedasticity test in best model. please help me, thank for your goodness.
sir, do you have tutorial in solving panel data regression two way effect model using eviews ?? thanks a lot Sir.
your tutorials video is very good. i have a persistent error 'unable to invoke xtset dialog' please somebody help how to diagonize the problem as i cannot proceed
In this case you need to e-mail STATA office as it may be a technical problem.
many thanks actually it seems a technical problem as my xtset panelid time is fine and balanced but cannot try any RE
Could you pass me the do file please. Thank you very much
You visit to Hossain Academy at below ink where you will find all data.
www.sayedhossain.com
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Hi, can you help me with the data?
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thank you for sharing this video, dear how can interpret Hausman test result to compare between FE and FE-IV model
. hausman iv
---- Coefficients ----
| (b) (B) (b-B) sqrt(diag(V_b-V_B))
| iv . Difference S.E.
-------------+----------------------------------------------------------------
IHS_fdx | -10.2609 -3.488869 -6.772031 1.233345
IHS_gov | -3.616735 -3.877065 .2603298 .2091792
IHS_gfcf | 3.277582 2.25975 1.017832 .1942741
IHS_trd | 1.358966 .7292542 .6297113 .1364145
IHS_gnci | .6256677 .3832061 .2424616 .0834463
IHS_lbor | -5.572129 -4.614434 -.9576948 .5514027
dum_fdx | 3.960901 -.3721835 4.333084 1.10512
------------------------------------------------------------------------------
b = consistent under Ho and Ha; obtained from xtivreg
B = inconsistent under Ha, efficient under Ho; obtained from xtreg
Test: Ho: difference in coefficients not systematic
chi2(7) = (b-B)'[(V_b-V_B)^(-1)](b-B)
= 42.89
Prob>chi2 = 0.0000
THANK YOU