Problem when trying fe regression

[Ioanna Syrmou]

Hello everyone,

My topic is: the effect of warfare on the formation of fiscal capacity. I have some countries and I observe them over time. The data set is panel data. I want to do the regression of fiscal capacity on war casualties, army size, population density ect but stata tells me when I do the regression that there are no observations. I destringed them to mention. What do you think is the problem? Do I have colinearity? What should I do?

I have the excel file attached.

Thank you in advance, thanks for checking it out.

Ioanna

[Carlo Lazzaro]

Ioanna:
please note that, due to the risk of downloading active contents, opening a spreadsheet is clearly hazardous (and avoided).
In addition, you can use -dataex- to share an excerpt/example of your dataset. Thanks.

[Ioanna Syrmou]

How do I do that?

And I tried running xtreg fsccap armysize warcas avgtrade popdensity1700 cloddeathsqkm1700_88, fe and then I got the error no observations r(2000);

Is something wrong with the data? As I said I destringed all variables with the destring command.

And I am running Stata 17.0 SE.

[Carlo Lazzaro]

Ioanna:
see -help datatex-.
I guess that all your predcitors are time-invariant and/or you have one wave of data only.

[Ioanna Syrmou]

Ioanna:
see -help datatex-.
I guess that all your predcitors are time-invariant and/or you have one wave of data only.

Could you elaborate more please?

[Carlo Lazzaro]

Ioanna:
see -xtreg- entry in Stata .pdf manual and/or any decent textbook on panel data econometrics therein included.

[Ioanna Syrmou]

Ioanna:
see -xtreg- entry in Stata .pdf manual and/or any decent textbook on panel data econometrics therein included.

Yes of course I know about that.. I thought I would get an opinion from someone here..

[Carlo Lazzaro]

Ioanna:
please use -dataex- if you want more helpful replies. Thanks.