Hey everyone,

I am in need of help! 

I am currently writing my thesis in which I conduct a multiple linear regression. 

I am testing for the influence of national values on the environmental performance of firms in 30  different countries. In this regard, I have - as dependent variable - the values of environmental performance of app. 3.000 companies in 30 countries over the period of 10 years - so there are 10 different observations for each company in ever year from 2019-2019 (in total around 30.000 observations for around 3.000 companies).

Now in the contrary - not taking into account all other controlling variables - the variable for the national values only differs from country to country while being consistent over time (The survey for the national values was done in 2010 and I am testing for the potential impact on corporate environmental performance from 2010-2019)

So in essence, I actually test with only 30 different national values for over 30 thousand obervations.

My Professor told me to use clustered standard errors in this case to test for the validity of my tests but i dont seem to find a way to do this with SPSS.. is there anyone who might know how to do this? 

Help is very much appreciated!

Hey everyone,

I am in need of help! 

I am currently writing my thesis in which I conduct a multiple linear regression. 

I am testing for the influence of national values on the environmental performance of firms in 30  different countries. In this regard, I have - as dependent variable - the values of environmental performance of app. 3.000 companies in 30 countries over the period of 10 years - so there are 10 different observations for each company in ever year from 2019-2019 (in total around 30.000 observations for around 3.000 companies).

Now in the contrary - not taking into account all other controlling variables - the variable for the national values only differs from country to country while being consistent over time (The survey for the national values was done in 2010 and I am testing for the potential impact on corporate environmental performance from 2010-2019)

So in essence, I actually test with only 30 different national values for over 30 thousand obervations.

My Professor told me to use clustered standard errors in this case to test for the validity of my tests but i dont seem to find a way to do this with SPSS.. is there anyone who might know how to do this? 

Help is very much appreciated!