Hi all,

I have a problem when performing an xtlogit regression (I've gone through a couple of threads on this problem, but none seem to have helped).

I set up my dataset as follows:

Code:
encode Country, gen(country1)

xtset country1 year
My baseline regression works fine:

[CODE]xtlogit dep_variable_VA_15_Constant_Val Ln_GDP_PC Ln_squared_GDP_PC Ln_population Ln_population_Squared, i(country1) pa vce(robust) nolog[CODE]

as does my 2nd regression:

Code:
xtlogit dep_variable_VA_15_Constant_Val Ln_GDP_PC Ln_squared_GDP_PC Ln_population Ln_population_Squared i.decade , i(country1) pa vce(robust) nolog
However, when I add a 2nd additional dummy variable, i.region, I get the "convergence not achieved" error message from Stata.

Code:
xtlogit dep_variable_VA_15_Constant_Val Ln_GDP_PC Ln_squared_GDP_PC Ln_population Ln_population_Squared i.decade i.region , i(country1) pa vce(robust) nolog
Strangely, when I remove just one country (as is the case in the following regression), the xtlogit regression does converge:

Code:
xtlogit dep_variable_VA_15_Constant_Val Ln_GDP_PC Ln_squared_GDP_PC Ln_population Ln_population_Squared i.decade i.region if country1!=9, i(country1) pa vce(robust) nolog
I have attached the.dta file I am using...would appreciate any help!

Thanks